









| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| US29/560,960USD821793S1 (en) | 2016-04-12 | 2016-04-12 | Seating shell | 
| JPD2016-22109FJP1584518S (en) | 2016-04-12 | 2016-10-11 | |
| AU201615743FAU201615743S (en) | 2016-04-12 | 2016-10-12 | Seating shell for a chair | 
| CA170997FCA170997S (en) | 2016-04-12 | 2016-10-12 | Seating shell | 
| US15/726,855US10194750B2 (en) | 2015-04-13 | 2017-10-06 | Seating arrangement | 
| US15/997,097US11096497B2 (en) | 2015-04-13 | 2018-06-04 | Seating arrangement | 
| US16/234,722US11259637B2 (en) | 2015-04-13 | 2018-12-28 | Seating arrangement | 
| US29/728,280USD932203S1 (en) | 2016-04-12 | 2020-03-17 | Seating arrangement | 
| US17/094,416US11553797B2 (en) | 2015-04-13 | 2020-11-10 | Seating arrangement | 
| US17/379,444US11963621B2 (en) | 2015-04-13 | 2021-07-19 | Seating arrangement | 
| US18/619,362US20240237826A1 (en) | 2015-04-13 | 2024-03-28 | Seating arrangement | 
| US19/027,527US20250151912A1 (en) | 2015-04-13 | 2025-01-17 | Seating arrangement | 
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| US29/560,960USD821793S1 (en) | 2016-04-12 | 2016-04-12 | Seating shell | 
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| US29/560,957Continuation-In-PartUSD804839S1 (en) | 2015-04-13 | 2016-04-12 | Chair | 
| US29/560,966Continuation-In-PartUSD804876S1 (en) | 2015-04-13 | 2016-04-12 | Chair | 
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| US29/560,954Continuation-In-PartUSD808187S1 (en) | 2015-04-13 | 2016-04-12 | Seating shell | 
| US29/560,962Continuation-In-PartUSD804875S1 (en) | 2015-04-13 | 2016-04-12 | Chair | 
| Publication Number | Publication Date | 
|---|---|
| USD821793S1true USD821793S1 (en) | 2018-07-03 | 
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| US29/560,960ActiveUSD821793S1 (en) | 2015-04-13 | 2016-04-12 | Seating shell | 
| Country | Link | 
|---|---|
| US (1) | USD821793S1 (en) | 
| JP (1) | JP1584518S (en) | 
| AU (1) | AU201615743S (en) | 
| CA (1) | CA170997S (en) | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| USD854868S1 (en)* | 2011-06-03 | 2019-07-30 | Sender's Construction, LLC | Letter R chair | 
| US10518685B2 (en)* | 2017-03-08 | 2019-12-31 | Ts Tech Co., Ltd. | Conveyance seat | 
| USD935824S1 (en) | 2020-02-19 | 2021-11-16 | Steelcase Inc. | Seat | 
| USD936985S1 (en) | 2020-02-19 | 2021-11-30 | Steelcase Inc. | Chair | 
| USD937024S1 (en) | 2020-02-19 | 2021-11-30 | Steelcase Inc. | Backrest | 
| USD936984S1 (en) | 2020-02-19 | 2021-11-30 | Steelcase Inc. | Chair | 
| USD937595S1 (en) | 2020-02-19 | 2021-12-07 | Steelcase Inc. | Chair | 
| USD951690S1 (en) | 2020-02-19 | 2022-05-17 | Steelcase Inc. | Chair | 
| USD961317S1 (en) | 2020-02-19 | 2022-08-23 | Steelcase Inc. | Backrest | 
| USD961280S1 (en) | 2020-02-19 | 2022-08-23 | Steelcase Inc. | Chair | 
| USD961953S1 (en)* | 2021-05-24 | 2022-08-30 | Menu A/S | Dining chair | 
| USD988049S1 (en) | 2021-05-12 | 2023-06-06 | Steelcase Inc. | Lumbar support | 
| USD988048S1 (en) | 2021-01-20 | 2023-06-06 | Steelcase Inc. | Lumbar support | 
| USD995179S1 (en) | 2021-01-20 | 2023-08-15 | Steelcase Inc. | Chair with lumbar support | 
| USD995180S1 (en) | 2021-05-12 | 2023-08-15 | Steelcase Inc. | Chair with lumbar support | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| US1961641A (en) | 1933-09-07 | 1934-06-05 | Daniel F Shaughnessy | Chair seat | 
| US2217893A (en) | 1938-10-22 | 1940-10-15 | Commerical Ingredients Corp | Furniture seat | 
| US2799323A (en) | 1954-05-18 | 1957-07-16 | Joseph A Berg | Self-aligning seat construction | 
| US2993733A (en) | 1959-07-13 | 1961-07-25 | Jackson P Pinkham | Molded chair construction | 
| US3080195A (en) | 1960-03-07 | 1963-03-05 | Joseph A Berg | Self-aligning seating construction | 
| US3133765A (en) | 1962-08-30 | 1964-05-19 | Ion Corp | Chair | 
| US3201172A (en) | 1963-08-09 | 1965-08-17 | Charles O Bliss | Chair construction | 
| US3463547A (en) | 1967-10-20 | 1969-08-26 | John M Brennan | Flexible chair seat | 
| US3583759A (en) | 1969-10-16 | 1971-06-08 | American Desk Mfg Co | Molded chair shell | 
| US3601176A (en) | 1970-02-20 | 1971-08-24 | Whitecraft Ind Inc | Flexible support apparatus | 
| US3669499A (en) | 1970-12-30 | 1972-06-13 | Steelcase Inc | Chair | 
| US3740096A (en) | 1971-05-04 | 1973-06-19 | Bridg A Back Inc | Orthopedic seat | 
| US3823980A (en) | 1973-05-14 | 1974-07-16 | Blair Mfg Co | Chair | 
| US3827750A (en) | 1972-01-13 | 1974-08-06 | Tecno Spa | Support for the seat of a chair | 
| US3883176A (en) | 1973-01-23 | 1975-05-13 | Pel Ltd | Chair shell | 
| US3942836A (en) | 1974-04-22 | 1976-03-09 | Steelcase Inc. | Chair | 
| US4047757A (en) | 1976-05-03 | 1977-09-13 | Eames Loren W | Seating structures with flexible backs | 
| USD255184S (en) | 1977-07-15 | 1980-06-03 | Giroflex-Entwicklungs-Ag | Chair or similar article | 
| US4418958A (en) | 1980-01-21 | 1983-12-06 | Watkin Bernard C | Plastics chair shell | 
| US4498702A (en) | 1982-06-11 | 1985-02-12 | Steelcase Inc. | Seating unit with front flex area | 
| US4500137A (en) | 1982-01-21 | 1985-02-19 | Morehouse Laurence E | Physiological chair | 
| USD279437S (en)* | 1983-03-23 | 1985-07-02 | Fairchild Industries, Inc. | Bucket seat | 
| US4529247A (en) | 1982-04-15 | 1985-07-16 | Herman Miller, Inc. | One-piece shell chair | 
| US4556254A (en) | 1981-12-15 | 1985-12-03 | Bio-Support Industries Limited | Backrest | 
| USD283469S (en)* | 1983-12-20 | 1986-04-22 | Zimmerman Wade N | Race car seat | 
| USD284144S (en) | 1982-08-31 | 1986-06-10 | Hugo Pedersen | Combined seat and backrest | 
| USD289120S (en) | 1984-02-17 | 1987-04-07 | Herman Miller, Inc. | Chair shell | 
| US4668015A (en) | 1985-10-24 | 1987-05-26 | Kjersem Jens A | Chair without a back/a stool | 
| US4744603A (en) | 1986-04-10 | 1988-05-17 | Steelcase Inc. | Chair shell with selective back stiffening | 
| US4856846A (en) | 1986-02-13 | 1989-08-15 | Hartmut Lohmeyer | Chair with a seat and an inherently elastically pliable back rest | 
| US4892356A (en) | 1988-07-27 | 1990-01-09 | Chromcraft Furniture Corp. | Chair shell | 
| USD307221S (en) | 1987-03-02 | 1990-04-17 | Mudge William E | Orthopedic chair seat | 
| US4938530A (en) | 1988-01-27 | 1990-07-03 | Steelcase, Inc. | Wire frame chair | 
| US4979778A (en) | 1989-01-17 | 1990-12-25 | Brayton International, Inc. | Synchrotilt chair | 
| US5067772A (en) | 1990-03-29 | 1991-11-26 | Michigan Seat Company | Foam seat with insert | 
| US5076646A (en) | 1989-12-06 | 1991-12-31 | Denis Matte | One-piece shell for a chair | 
| US5102196A (en) | 1988-08-31 | 1992-04-07 | Kokuyo Co., Ltd. | Chair provided with a backrest | 
| USD346909S (en) | 1991-03-25 | 1994-05-17 | Itoki, Co., Ltd. | Chair | 
| US5314240A (en) | 1991-05-21 | 1994-05-24 | Itoki Co., Ltd. | Shell structure for use with a chair having synchronously moving seat and seat back | 
| USD349826S (en)* | 1992-01-17 | 1994-08-23 | Fritz Hansens Eft. A/S | Seat for a chair | 
| USD353718S (en) | 1992-06-11 | 1994-12-27 | Hon Industries Inc. | Swivel chair | 
| US5411316A (en) | 1993-10-13 | 1995-05-02 | Westinghouse Electric Corporation | Single piece chair shell | 
| USD360786S (en)* | 1994-02-18 | 1995-08-01 | Zapf Otto W | Seat | 
| US5499413A (en) | 1994-04-29 | 1996-03-19 | Westinghouse Electric Corporation | Composite foam chair cushion and method | 
| US5538326A (en) | 1994-11-14 | 1996-07-23 | Milsco Manufacturing Company | Flexible unitary seat shell | 
| USD373273S (en)* | 1995-07-03 | 1996-09-03 | Zapf Otto W | Seat | 
| US5567012A (en) | 1986-04-10 | 1996-10-22 | Steelcase, Inc. | Chair control | 
| US5577811A (en) | 1995-06-07 | 1996-11-26 | Hon Industries Inc. | Ergonomic chair | 
| USD381525S (en) | 1995-06-09 | 1997-07-29 | Hon Industries Inc. | Chair | 
| US5713632A (en) | 1997-01-03 | 1998-02-03 | Su; Ching-Chuan | Swivel chair having a body-fit structure | 
| USD390384S (en) | 1996-09-23 | 1998-02-10 | Hon Industries Inc. | Chair | 
| USD393968S (en) | 1997-02-26 | 1998-05-05 | Steelcase Inc. | Chair | 
| USD394961S (en) | 1996-10-14 | 1998-06-09 | Giroflex Entwicklungs Ag | Chair | 
| US5791736A (en) | 1993-08-31 | 1998-08-11 | Heygarth South Pty. Ltd. | Ergonomic seating apparatus with inclined femoral portion | 
| US5957534A (en) | 1994-06-10 | 1999-09-28 | Haworth, Inc. | Chair | 
| US5997094A (en) | 1998-06-05 | 1999-12-07 | Stylex, Inc. | Stackable chair with lumbar support | 
| USD417558S (en) | 1997-02-13 | 1999-12-14 | KI Casala Mobelwerke GmbH | Chair | 
| US6079782A (en) | 1999-01-29 | 2000-06-27 | Jean Baughman | Seat construction which corrects the pelvis so that it influences a proper alignment of the human body | 
| USD433834S (en) | 1999-06-09 | 2000-11-21 | Allseating Corporation | Chair | 
| USD437497S1 (en) | 1998-10-21 | 2001-02-13 | Vitra Patente Ag | Chair | 
| US6217121B1 (en) | 1999-06-18 | 2001-04-17 | Jan Mollet | Therapeutic cushioning device | 
| USD444307S1 (en) | 2000-01-31 | 2001-07-03 | Oohiro Works, Ltd. | Seat for barber or beauty chair | 
| USD445613S1 (en) | 2000-04-06 | 2001-07-31 | United Chair Company, Inc. | Chair | 
| USD451723S1 (en) | 2001-02-26 | 2001-12-11 | James E. Grove | Executive chair | 
| USD456625S1 (en) | 2000-10-18 | 2002-05-07 | Kokuyo Co., Ltd. | Chair | 
| US6409268B1 (en) | 2000-06-09 | 2002-06-25 | Stylex, Inc. | Flexible chair back | 
| USD470320S1 (en) | 2001-08-24 | 2003-02-18 | School Specialty, Inc. | Chair | 
| USD473407S1 (en) | 2001-10-10 | 2003-04-22 | Autumn House Incorporated | Seat structure | 
| US6634717B2 (en) | 2001-11-15 | 2003-10-21 | Fursys Incorporation | Tilting chair | 
| US6722735B2 (en) | 2001-04-16 | 2004-04-20 | Ditto Sales, Inc. | Chair with synchronously moving seat and seat back | 
| USD493642S1 (en)* | 2002-06-25 | 2004-08-03 | Ardencom Limited | Body of a chair | 
| US6786548B2 (en) | 1999-05-27 | 2004-09-07 | Steelcase Development Corporation | Chair construction | 
| USD498070S1 (en) | 2003-04-08 | 2004-11-09 | Wilkhahn Wilkening & Hahn Gmbh | Chair | 
| US6817667B2 (en) | 2000-09-28 | 2004-11-16 | Formway Furniture Limited | Reclinable chair | 
| USD507437S1 (en) | 2004-08-03 | 2005-07-19 | Kimball International, Inc. | Chair seat and backrest | 
| USD507909S1 (en) | 2004-09-21 | 2005-08-02 | James E. Grove | Reversely curved chair arm | 
| USD510668S1 (en) | 2002-12-20 | 2005-10-18 | Eldoey Olav | Chair | 
| USD513911S1 (en) | 2004-06-10 | 2006-01-31 | Virco Mgmt. Corporation | Chair seating assembly | 
| USD513910S1 (en)* | 2004-04-13 | 2006-01-31 | Gehry Frank O | Seat frame | 
| USD514339S1 (en) | 2004-08-26 | 2006-02-07 | Virco Mgmt. Corporation | Task chair | 
| USD519294S1 (en) | 2003-10-06 | 2006-04-25 | Kokuyo Co., Ltd. | Chair | 
| USD522265S1 (en) | 2005-06-07 | 2006-06-06 | Virco Mgmt. Corporation | Chair | 
| USD525057S1 (en) | 2004-04-29 | 2006-07-18 | Hni Technologies Inc. | Chair arms | 
| USD526134S1 (en) | 2004-06-10 | 2006-08-08 | Virco Mgmt. Corporation | Rocking chair | 
| US7213886B2 (en) | 2002-02-13 | 2007-05-08 | Herman Miller, Inc. | Modular tilt housing for a seating structure | 
| USD542553S1 (en) | 2004-04-30 | 2007-05-15 | Peitz Timothy V | Chair | 
| US7226130B2 (en) | 2002-09-12 | 2007-06-05 | Steelcase Development Corporation | Seating with comfort surface | 
| USD549018S1 (en) | 2007-02-20 | 2007-08-21 | Virco Mgmt. Corporation | Chair bucket | 
| US20070205648A1 (en) | 2006-03-06 | 2007-09-06 | Tsung-Chieh Huang | Elastic assembly of chair cushion | 
| DE202007010030U1 (en) | 2007-04-06 | 2007-09-27 | Mayr-Schulmöbel Ges.m.b.H. | Seat with a seat part and an integrally formed back comprehensive bowl made of plastic | 
| USD553380S1 (en) | 2007-02-19 | 2007-10-23 | Ilpo-Divisione Integrali - S.P.A. | Seat-body | 
| USD554230S1 (en) | 2006-10-24 | 2007-10-30 | Blitz U.S.A., Inc. | Oil recycling can | 
| USD554386S1 (en)* | 2005-05-18 | 2007-11-06 | Steelcase Development Corporation | Seating unit | 
| USD557532S1 (en) | 2007-03-19 | 2007-12-18 | True Seating Concepts, Llc | Chair arm | 
| USD561499S1 (en) | 2007-05-03 | 2008-02-12 | Kimball International, Inc. | Chair backrest | 
| USD566979S1 (en) | 2006-11-22 | 2008-04-22 | Artco-Bell | Chair | 
| USD572049S1 (en) | 2007-05-25 | 2008-07-01 | Keilhauer (Partnership) | Unified chair seat and back | 
| US7396077B2 (en) | 2006-03-31 | 2008-07-08 | 155124 Canada Inc. | Seat structure with elastic suspension | 
| USD587043S1 (en)* | 2007-03-01 | 2009-02-24 | Royal Seating, Llc | Chair shell | 
| USD597758S1 (en) | 2008-02-05 | 2009-08-11 | Krueger International, Inc. | Chair | 
| US7600820B2 (en) | 2008-02-05 | 2009-10-13 | Krueger International, Inc. | Chair shell with integral hollow contoured support | 
| US20090261644A1 (en) | 2008-04-18 | 2009-10-22 | Pro-Cord Spa | Chair | 
| USD609036S1 (en) | 2009-08-17 | 2010-02-02 | ITOKI Design Corporation | Mesh back chair | 
| USD611740S1 (en)* | 2009-10-05 | 2010-03-16 | Tuang Hock Koh | Chair | 
| USD618005S1 (en)* | 2009-09-21 | 2010-06-22 | Homecrest Outdoor Living, Llc | Sling-type chair construction | 
| USD628831S1 (en) | 2007-09-21 | 2010-12-14 | Herman Miller, Inc. | Body support structure | 
| US7926879B2 (en) | 2007-09-20 | 2011-04-19 | Herman Miller, Inc. | Load support structure | 
| USD637017S1 (en) | 2010-02-23 | 2011-05-03 | Panasonic Electric Works Co., Ltd. | Electric massaging chair | 
| US7992936B2 (en) | 2006-03-24 | 2011-08-09 | Herman Miller, Inc. | Seat | 
| USD646088S1 (en) | 2010-12-27 | 2011-10-04 | moll Funktionsmöbel GmbH | Chairs | 
| USD646085S1 (en)* | 2010-02-01 | 2011-10-04 | Steelcase Inc. | Seating unit | 
| USD646511S1 (en) | 2010-06-24 | 2011-10-11 | moll Funktionsmöbel GmbH | Chairs | 
| USD654291S1 (en) | 2008-05-26 | 2012-02-21 | Steelcase Inc. | Seating unit | 
| USD654280S1 (en) | 2008-10-09 | 2012-02-21 | Okamura Corporation | Chair | 
| USD660056S1 (en) | 2006-06-20 | 2012-05-22 | Humanscale Corporation | Chair | 
| USD661915S1 (en) | 2010-03-31 | 2012-06-19 | Stoll Giroflex Ag | Chair | 
| USD663129S1 (en) | 2010-03-31 | 2012-07-10 | Stoll Giroflex Ag | Chair | 
| USD663132S1 (en) | 2010-04-12 | 2012-07-10 | Vitra Patente Ag | Chair | 
| US20120228911A1 (en) | 2011-03-08 | 2012-09-13 | Alessandro Piretti | Chair with tilting backrest | 
| USD669279S1 (en) | 2012-04-18 | 2012-10-23 | Varier Furniture As | Chair | 
| USD669701S1 (en) | 2012-02-14 | 2012-10-30 | Emeco Industries, Inc. | Seat frame | 
| USD670099S1 (en) | 2012-02-23 | 2012-11-06 | Knoll, Inc. | Chair | 
| USD677067S1 (en)* | 2011-09-08 | 2013-03-05 | Toray Industries, Inc. | Automotive seat | 
| US8414073B2 (en) | 2006-03-24 | 2013-04-09 | Herman Miller, Inc. | Seating arrangement | 
| USD680765S1 (en) | 2011-10-11 | 2013-04-30 | Dauphin Entwicklungs-u.Beteiligungs-GmbH | Chair | 
| USD683558S1 (en) | 2011-11-08 | 2013-06-04 | Hni Technologies Inc. | Chair | 
| US8616640B2 (en) | 2010-05-20 | 2013-12-31 | Knoll, Inc. | Chair | 
| US8657374B2 (en) | 2008-06-17 | 2014-02-25 | Thomas Oliver Duncan Higgs | Chair | 
| USD701053S1 (en) | 2012-09-20 | 2014-03-18 | Steelcase Inc. | Chair | 
| US20140077573A1 (en) | 2011-05-20 | 2014-03-20 | Ass-Einrichtungssysteme Gmbh | Seat shell for seating furniture | 
| USD705560S1 (en) | 2012-11-14 | 2014-05-27 | Itoki Corporation | Chair | 
| USD715573S1 (en) | 2013-04-17 | 2014-10-21 | Howe A/S | Chair | 
| USD723826S1 (en) | 2013-06-10 | 2015-03-10 | Grand Rapids Chair Company | Chair | 
| USD727077S1 (en)* | 2013-06-18 | 2015-04-21 | Zhejiang University | Sit board | 
| USD729564S1 (en)* | 2014-04-02 | 2015-05-19 | Haskell Office | Seating unit | 
| USD729538S1 (en) | 2013-04-08 | 2015-05-19 | Arper S.P.A. | Chair | 
| US9049936B2 (en) | 2011-01-14 | 2015-06-09 | Currier Plastics | Integral coccyx and lumbar support system | 
| USD733445S1 (en) | 2013-09-26 | 2015-07-07 | Okamura Corporation | Chair | 
| USD738656S1 (en)* | 2013-11-11 | 2015-09-15 | Qubicaamf Worldwide, Llc | Chair | 
| USD738657S1 (en)* | 2014-07-25 | 2015-09-15 | Haskell Office | Seating unit | 
| USD742153S1 (en) | 2014-07-08 | 2015-11-03 | Virco Mfg. Corporation | Chair seat | 
| USD742673S1 (en)* | 2013-07-10 | 2015-11-10 | Offisit S.R.L. | Chair | 
| USD743180S1 (en) | 2014-10-15 | 2015-11-17 | Hni Technologies Inc. | Chair | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| US1961641A (en) | 1933-09-07 | 1934-06-05 | Daniel F Shaughnessy | Chair seat | 
| US2217893A (en) | 1938-10-22 | 1940-10-15 | Commerical Ingredients Corp | Furniture seat | 
| US2799323A (en) | 1954-05-18 | 1957-07-16 | Joseph A Berg | Self-aligning seat construction | 
| US2993733A (en) | 1959-07-13 | 1961-07-25 | Jackson P Pinkham | Molded chair construction | 
| US3080195A (en) | 1960-03-07 | 1963-03-05 | Joseph A Berg | Self-aligning seating construction | 
| US3133765A (en) | 1962-08-30 | 1964-05-19 | Ion Corp | Chair | 
| US3201172A (en) | 1963-08-09 | 1965-08-17 | Charles O Bliss | Chair construction | 
| US3463547A (en) | 1967-10-20 | 1969-08-26 | John M Brennan | Flexible chair seat | 
| US3583759A (en) | 1969-10-16 | 1971-06-08 | American Desk Mfg Co | Molded chair shell | 
| US3601176A (en) | 1970-02-20 | 1971-08-24 | Whitecraft Ind Inc | Flexible support apparatus | 
| US3669499A (en) | 1970-12-30 | 1972-06-13 | Steelcase Inc | Chair | 
| US3740096A (en) | 1971-05-04 | 1973-06-19 | Bridg A Back Inc | Orthopedic seat | 
| US3827750A (en) | 1972-01-13 | 1974-08-06 | Tecno Spa | Support for the seat of a chair | 
| US3883176A (en) | 1973-01-23 | 1975-05-13 | Pel Ltd | Chair shell | 
| US3823980A (en) | 1973-05-14 | 1974-07-16 | Blair Mfg Co | Chair | 
| US3942836A (en) | 1974-04-22 | 1976-03-09 | Steelcase Inc. | Chair | 
| US4047757A (en) | 1976-05-03 | 1977-09-13 | Eames Loren W | Seating structures with flexible backs | 
| USD255185S (en) | 1977-07-15 | 1980-06-03 | Giroflex-Entwicklungs-Ag | Chair or similar article | 
| USD255183S (en) | 1977-07-15 | 1980-06-03 | Giroflex-Entwicklungs-Ag | Chair or similar article | 
| USD255184S (en) | 1977-07-15 | 1980-06-03 | Giroflex-Entwicklungs-Ag | Chair or similar article | 
| US4418958A (en) | 1980-01-21 | 1983-12-06 | Watkin Bernard C | Plastics chair shell | 
| US4556254A (en) | 1981-12-15 | 1985-12-03 | Bio-Support Industries Limited | Backrest | 
| US4500137A (en) | 1982-01-21 | 1985-02-19 | Morehouse Laurence E | Physiological chair | 
| US4529247A (en) | 1982-04-15 | 1985-07-16 | Herman Miller, Inc. | One-piece shell chair | 
| US4498702A (en) | 1982-06-11 | 1985-02-12 | Steelcase Inc. | Seating unit with front flex area | 
| USD284144S (en) | 1982-08-31 | 1986-06-10 | Hugo Pedersen | Combined seat and backrest | 
| USD279437S (en)* | 1983-03-23 | 1985-07-02 | Fairchild Industries, Inc. | Bucket seat | 
| USD283469S (en)* | 1983-12-20 | 1986-04-22 | Zimmerman Wade N | Race car seat | 
| USD289120S (en) | 1984-02-17 | 1987-04-07 | Herman Miller, Inc. | Chair shell | 
| US4668015A (en) | 1985-10-24 | 1987-05-26 | Kjersem Jens A | Chair without a back/a stool | 
| US4856846A (en) | 1986-02-13 | 1989-08-15 | Hartmut Lohmeyer | Chair with a seat and an inherently elastically pliable back rest | 
| US4744603A (en) | 1986-04-10 | 1988-05-17 | Steelcase Inc. | Chair shell with selective back stiffening | 
| US5333934A (en) | 1986-04-10 | 1994-08-02 | Steelcase Inc. | Back shell with selective stiffening | 
| US5567012A (en) | 1986-04-10 | 1996-10-22 | Steelcase, Inc. | Chair control | 
| US5352022A (en) | 1986-04-10 | 1994-10-04 | Steelcase Inc. | Controlled deflection front lip for seating | 
| US5050931A (en) | 1986-04-10 | 1991-09-24 | Steelcase Inc. | Controlled deflection front lip for seating | 
| USD307221S (en) | 1987-03-02 | 1990-04-17 | Mudge William E | Orthopedic chair seat | 
| US4938530A (en) | 1988-01-27 | 1990-07-03 | Steelcase, Inc. | Wire frame chair | 
| US4892356A (en) | 1988-07-27 | 1990-01-09 | Chromcraft Furniture Corp. | Chair shell | 
| US5102196A (en) | 1988-08-31 | 1992-04-07 | Kokuyo Co., Ltd. | Chair provided with a backrest | 
| US4979778A (en) | 1989-01-17 | 1990-12-25 | Brayton International, Inc. | Synchrotilt chair | 
| US5076646A (en) | 1989-12-06 | 1991-12-31 | Denis Matte | One-piece shell for a chair | 
| US5067772A (en) | 1990-03-29 | 1991-11-26 | Michigan Seat Company | Foam seat with insert | 
| USD346909S (en) | 1991-03-25 | 1994-05-17 | Itoki, Co., Ltd. | Chair | 
| US5314240A (en) | 1991-05-21 | 1994-05-24 | Itoki Co., Ltd. | Shell structure for use with a chair having synchronously moving seat and seat back | 
| US5338099A (en) | 1991-05-21 | 1994-08-16 | Itoki Co., Ltd. | Shell structure for use with a chair having synchronously moving seat and seat back | 
| USD349826S (en)* | 1992-01-17 | 1994-08-23 | Fritz Hansens Eft. A/S | Seat for a chair | 
| USD353718S (en) | 1992-06-11 | 1994-12-27 | Hon Industries Inc. | Swivel chair | 
| US5791736A (en) | 1993-08-31 | 1998-08-11 | Heygarth South Pty. Ltd. | Ergonomic seating apparatus with inclined femoral portion | 
| US5411316A (en) | 1993-10-13 | 1995-05-02 | Westinghouse Electric Corporation | Single piece chair shell | 
| USD360786S (en)* | 1994-02-18 | 1995-08-01 | Zapf Otto W | Seat | 
| US5499413A (en) | 1994-04-29 | 1996-03-19 | Westinghouse Electric Corporation | Composite foam chair cushion and method | 
| US5957534A (en) | 1994-06-10 | 1999-09-28 | Haworth, Inc. | Chair | 
| US5538326A (en) | 1994-11-14 | 1996-07-23 | Milsco Manufacturing Company | Flexible unitary seat shell | 
| US5577811A (en) | 1995-06-07 | 1996-11-26 | Hon Industries Inc. | Ergonomic chair | 
| USD381525S (en) | 1995-06-09 | 1997-07-29 | Hon Industries Inc. | Chair | 
| USD373273S (en)* | 1995-07-03 | 1996-09-03 | Zapf Otto W | Seat | 
| USD390384S (en) | 1996-09-23 | 1998-02-10 | Hon Industries Inc. | Chair | 
| USD394961S (en) | 1996-10-14 | 1998-06-09 | Giroflex Entwicklungs Ag | Chair | 
| US5713632A (en) | 1997-01-03 | 1998-02-03 | Su; Ching-Chuan | Swivel chair having a body-fit structure | 
| USD417558S (en) | 1997-02-13 | 1999-12-14 | KI Casala Mobelwerke GmbH | Chair | 
| USD393968S (en) | 1997-02-26 | 1998-05-05 | Steelcase Inc. | Chair | 
| US5997094A (en) | 1998-06-05 | 1999-12-07 | Stylex, Inc. | Stackable chair with lumbar support | 
| USD437497S1 (en) | 1998-10-21 | 2001-02-13 | Vitra Patente Ag | Chair | 
| US6079782A (en) | 1999-01-29 | 2000-06-27 | Jean Baughman | Seat construction which corrects the pelvis so that it influences a proper alignment of the human body | 
| US6786548B2 (en) | 1999-05-27 | 2004-09-07 | Steelcase Development Corporation | Chair construction | 
| USD433834S (en) | 1999-06-09 | 2000-11-21 | Allseating Corporation | Chair | 
| US6217121B1 (en) | 1999-06-18 | 2001-04-17 | Jan Mollet | Therapeutic cushioning device | 
| USD444307S1 (en) | 2000-01-31 | 2001-07-03 | Oohiro Works, Ltd. | Seat for barber or beauty chair | 
| USD445613S1 (en) | 2000-04-06 | 2001-07-31 | United Chair Company, Inc. | Chair | 
| US6409268B1 (en) | 2000-06-09 | 2002-06-25 | Stylex, Inc. | Flexible chair back | 
| US6817667B2 (en) | 2000-09-28 | 2004-11-16 | Formway Furniture Limited | Reclinable chair | 
| USD456625S1 (en) | 2000-10-18 | 2002-05-07 | Kokuyo Co., Ltd. | Chair | 
| USD451723S1 (en) | 2001-02-26 | 2001-12-11 | James E. Grove | Executive chair | 
| US6722735B2 (en) | 2001-04-16 | 2004-04-20 | Ditto Sales, Inc. | Chair with synchronously moving seat and seat back | 
| US6935690B2 (en) | 2001-04-16 | 2005-08-30 | Ditto Sales, Inc. | Chair with synchronously moving seat and seat back | 
| USD470320S1 (en) | 2001-08-24 | 2003-02-18 | School Specialty, Inc. | Chair | 
| USD473407S1 (en) | 2001-10-10 | 2003-04-22 | Autumn House Incorporated | Seat structure | 
| US6634717B2 (en) | 2001-11-15 | 2003-10-21 | Fursys Incorporation | Tilting chair | 
| US7213886B2 (en) | 2002-02-13 | 2007-05-08 | Herman Miller, Inc. | Modular tilt housing for a seating structure | 
| USD493642S1 (en)* | 2002-06-25 | 2004-08-03 | Ardencom Limited | Body of a chair | 
| US7226130B2 (en) | 2002-09-12 | 2007-06-05 | Steelcase Development Corporation | Seating with comfort surface | 
| USD516831S1 (en) | 2002-12-20 | 2006-03-14 | Eldoey Olav | Chair | 
| USD510668S1 (en) | 2002-12-20 | 2005-10-18 | Eldoey Olav | Chair | 
| USD498070S1 (en) | 2003-04-08 | 2004-11-09 | Wilkhahn Wilkening & Hahn Gmbh | Chair | 
| USD519294S1 (en) | 2003-10-06 | 2006-04-25 | Kokuyo Co., Ltd. | Chair | 
| USD513910S1 (en)* | 2004-04-13 | 2006-01-31 | Gehry Frank O | Seat frame | 
| USD525057S1 (en) | 2004-04-29 | 2006-07-18 | Hni Technologies Inc. | Chair arms | 
| USD542553S1 (en) | 2004-04-30 | 2007-05-15 | Peitz Timothy V | Chair | 
| USD526134S1 (en) | 2004-06-10 | 2006-08-08 | Virco Mgmt. Corporation | Rocking chair | 
| USD513911S1 (en) | 2004-06-10 | 2006-01-31 | Virco Mgmt. Corporation | Chair seating assembly | 
| USD507437S1 (en) | 2004-08-03 | 2005-07-19 | Kimball International, Inc. | Chair seat and backrest | 
| USD514339S1 (en) | 2004-08-26 | 2006-02-07 | Virco Mgmt. Corporation | Task chair | 
| USD507909S1 (en) | 2004-09-21 | 2005-08-02 | James E. Grove | Reversely curved chair arm | 
| USD554386S1 (en)* | 2005-05-18 | 2007-11-06 | Steelcase Development Corporation | Seating unit | 
| USD522265S1 (en) | 2005-06-07 | 2006-06-06 | Virco Mgmt. Corporation | Chair | 
| US20070205648A1 (en) | 2006-03-06 | 2007-09-06 | Tsung-Chieh Huang | Elastic assembly of chair cushion | 
| US8414073B2 (en) | 2006-03-24 | 2013-04-09 | Herman Miller, Inc. | Seating arrangement | 
| US7992936B2 (en) | 2006-03-24 | 2011-08-09 | Herman Miller, Inc. | Seat | 
| US8282172B2 (en) | 2006-03-24 | 2012-10-09 | Herman Miller, Inc. | Seat | 
| US7396077B2 (en) | 2006-03-31 | 2008-07-08 | 155124 Canada Inc. | Seat structure with elastic suspension | 
| USD660056S1 (en) | 2006-06-20 | 2012-05-22 | Humanscale Corporation | Chair | 
| USD554230S1 (en) | 2006-10-24 | 2007-10-30 | Blitz U.S.A., Inc. | Oil recycling can | 
| USD566979S1 (en) | 2006-11-22 | 2008-04-22 | Artco-Bell | Chair | 
| USD553380S1 (en) | 2007-02-19 | 2007-10-23 | Ilpo-Divisione Integrali - S.P.A. | Seat-body | 
| USD549018S1 (en) | 2007-02-20 | 2007-08-21 | Virco Mgmt. Corporation | Chair bucket | 
| USD587043S1 (en)* | 2007-03-01 | 2009-02-24 | Royal Seating, Llc | Chair shell | 
| USD557532S1 (en) | 2007-03-19 | 2007-12-18 | True Seating Concepts, Llc | Chair arm | 
| DE202007010030U1 (en) | 2007-04-06 | 2007-09-27 | Mayr-Schulmöbel Ges.m.b.H. | Seat with a seat part and an integrally formed back comprehensive bowl made of plastic | 
| USD561499S1 (en) | 2007-05-03 | 2008-02-12 | Kimball International, Inc. | Chair backrest | 
| USD572049S1 (en) | 2007-05-25 | 2008-07-01 | Keilhauer (Partnership) | Unified chair seat and back | 
| US20130099548A1 (en) | 2007-09-20 | 2013-04-25 | Herman Miller, Inc. | Load support structure | 
| US8282169B2 (en) | 2007-09-20 | 2012-10-09 | Herman Miller, Inc. | Load support structure | 
| US7926879B2 (en) | 2007-09-20 | 2011-04-19 | Herman Miller, Inc. | Load support structure | 
| USD628831S1 (en) | 2007-09-21 | 2010-12-14 | Herman Miller, Inc. | Body support structure | 
| US7600820B2 (en) | 2008-02-05 | 2009-10-13 | Krueger International, Inc. | Chair shell with integral hollow contoured support | 
| USD597758S1 (en) | 2008-02-05 | 2009-08-11 | Krueger International, Inc. | Chair | 
| US20090261644A1 (en) | 2008-04-18 | 2009-10-22 | Pro-Cord Spa | Chair | 
| USD654291S1 (en) | 2008-05-26 | 2012-02-21 | Steelcase Inc. | Seating unit | 
| US8657374B2 (en) | 2008-06-17 | 2014-02-25 | Thomas Oliver Duncan Higgs | Chair | 
| USD654280S1 (en) | 2008-10-09 | 2012-02-21 | Okamura Corporation | Chair | 
| USD609036S1 (en) | 2009-08-17 | 2010-02-02 | ITOKI Design Corporation | Mesh back chair | 
| USD618005S1 (en)* | 2009-09-21 | 2010-06-22 | Homecrest Outdoor Living, Llc | Sling-type chair construction | 
| USD611740S1 (en)* | 2009-10-05 | 2010-03-16 | Tuang Hock Koh | Chair | 
| USD646085S1 (en)* | 2010-02-01 | 2011-10-04 | Steelcase Inc. | Seating unit | 
| USD637017S1 (en) | 2010-02-23 | 2011-05-03 | Panasonic Electric Works Co., Ltd. | Electric massaging chair | 
| USD663129S1 (en) | 2010-03-31 | 2012-07-10 | Stoll Giroflex Ag | Chair | 
| USD661915S1 (en) | 2010-03-31 | 2012-06-19 | Stoll Giroflex Ag | Chair | 
| USD663132S1 (en) | 2010-04-12 | 2012-07-10 | Vitra Patente Ag | Chair | 
| US8616640B2 (en) | 2010-05-20 | 2013-12-31 | Knoll, Inc. | Chair | 
| USD646511S1 (en) | 2010-06-24 | 2011-10-11 | moll Funktionsmöbel GmbH | Chairs | 
| USD646088S1 (en) | 2010-12-27 | 2011-10-04 | moll Funktionsmöbel GmbH | Chairs | 
| US9049936B2 (en) | 2011-01-14 | 2015-06-09 | Currier Plastics | Integral coccyx and lumbar support system | 
| US20120228911A1 (en) | 2011-03-08 | 2012-09-13 | Alessandro Piretti | Chair with tilting backrest | 
| US20140077573A1 (en) | 2011-05-20 | 2014-03-20 | Ass-Einrichtungssysteme Gmbh | Seat shell for seating furniture | 
| USD677067S1 (en)* | 2011-09-08 | 2013-03-05 | Toray Industries, Inc. | Automotive seat | 
| USD680765S1 (en) | 2011-10-11 | 2013-04-30 | Dauphin Entwicklungs-u.Beteiligungs-GmbH | Chair | 
| USD707461S1 (en) | 2011-11-08 | 2014-06-24 | Hni Technologies, Inc. | Chair | 
| USD683558S1 (en) | 2011-11-08 | 2013-06-04 | Hni Technologies Inc. | Chair | 
| USD669701S1 (en) | 2012-02-14 | 2012-10-30 | Emeco Industries, Inc. | Seat frame | 
| USD670099S1 (en) | 2012-02-23 | 2012-11-06 | Knoll, Inc. | Chair | 
| USD669279S1 (en) | 2012-04-18 | 2012-10-23 | Varier Furniture As | Chair | 
| USD701053S1 (en) | 2012-09-20 | 2014-03-18 | Steelcase Inc. | Chair | 
| USD705560S1 (en) | 2012-11-14 | 2014-05-27 | Itoki Corporation | Chair | 
| USD729538S1 (en) | 2013-04-08 | 2015-05-19 | Arper S.P.A. | Chair | 
| USD715573S1 (en) | 2013-04-17 | 2014-10-21 | Howe A/S | Chair | 
| USD723826S1 (en) | 2013-06-10 | 2015-03-10 | Grand Rapids Chair Company | Chair | 
| USD727077S1 (en)* | 2013-06-18 | 2015-04-21 | Zhejiang University | Sit board | 
| USD742673S1 (en)* | 2013-07-10 | 2015-11-10 | Offisit S.R.L. | Chair | 
| USD733445S1 (en) | 2013-09-26 | 2015-07-07 | Okamura Corporation | Chair | 
| USD738656S1 (en)* | 2013-11-11 | 2015-09-15 | Qubicaamf Worldwide, Llc | Chair | 
| USD729564S1 (en)* | 2014-04-02 | 2015-05-19 | Haskell Office | Seating unit | 
| USD742153S1 (en) | 2014-07-08 | 2015-11-03 | Virco Mfg. Corporation | Chair seat | 
| USD738657S1 (en)* | 2014-07-25 | 2015-09-15 | Haskell Office | Seating unit | 
| USD743180S1 (en) | 2014-10-15 | 2015-11-17 | Hni Technologies Inc. | Chair | 
| USD759414S1 (en) | 2014-10-15 | 2016-06-21 | Hni Technologies Inc. | Chair | 
| Title | 
|---|
| Alibaba [online] Retrieved on May 8, 2017 from URL https://portuguese.alibaba.com/product-detail/zy-6001-outdoor-bleachers-seat-cheap-durable-hdpe-plastic-football-stadium-chair-for-pubilc-stadium-60062241707.html.* | 
| Shop Becker [online] Retrieved on May 8, 2017 from URL http://www.shopbecker.com/furnishings/tables/_/virco-desk-and-chair-set/.* | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| USD868519S1 (en) | 2011-06-03 | 2019-12-03 | Sender's Construction, LLC | Letter T chair | 
| USD878129S1 (en) | 2011-06-03 | 2020-03-17 | Sender's Construction, LLC | Letter L chair | 
| USD889178S1 (en) | 2011-06-03 | 2020-07-07 | Sender's Construction, LLC | Letter N chair | 
| USD899835S1 (en) | 2011-06-03 | 2020-10-27 | Sender's Construction, LLC | Letter M chair | 
| USD915115S1 (en) | 2011-06-03 | 2021-04-06 | Sender's Construction, LLC | Letter D chair | 
| USD854868S1 (en)* | 2011-06-03 | 2019-07-30 | Sender's Construction, LLC | Letter R chair | 
| US11185462B2 (en) | 2017-03-08 | 2021-11-30 | Ts Tech Co., Ltd. | Conveyance seat | 
| US10518685B2 (en)* | 2017-03-08 | 2019-12-31 | Ts Tech Co., Ltd. | Conveyance seat | 
| USD937595S1 (en) | 2020-02-19 | 2021-12-07 | Steelcase Inc. | Chair | 
| USD961315S1 (en) | 2020-02-19 | 2022-08-23 | Steelcase Inc. | Chair | 
| USD936984S1 (en) | 2020-02-19 | 2021-11-30 | Steelcase Inc. | Chair | 
| USD936985S1 (en) | 2020-02-19 | 2021-11-30 | Steelcase Inc. | Chair | 
| USD935824S1 (en) | 2020-02-19 | 2021-11-16 | Steelcase Inc. | Seat | 
| USD951691S1 (en) | 2020-02-19 | 2022-05-17 | Steelcase Inc. | Chair | 
| USD951690S1 (en) | 2020-02-19 | 2022-05-17 | Steelcase Inc. | Chair | 
| USD961317S1 (en) | 2020-02-19 | 2022-08-23 | Steelcase Inc. | Backrest | 
| USD961280S1 (en) | 2020-02-19 | 2022-08-23 | Steelcase Inc. | Chair | 
| USD937024S1 (en) | 2020-02-19 | 2021-11-30 | Steelcase Inc. | Backrest | 
| USD961316S1 (en) | 2020-02-19 | 2022-08-23 | Steelcase Inc. | Chair | 
| USD961281S1 (en) | 2020-02-19 | 2022-08-23 | Steelcase Inc. | Chair | 
| USD988048S1 (en) | 2021-01-20 | 2023-06-06 | Steelcase Inc. | Lumbar support | 
| USD995179S1 (en) | 2021-01-20 | 2023-08-15 | Steelcase Inc. | Chair with lumbar support | 
| USD988049S1 (en) | 2021-05-12 | 2023-06-06 | Steelcase Inc. | Lumbar support | 
| USD995180S1 (en) | 2021-05-12 | 2023-08-15 | Steelcase Inc. | Chair with lumbar support | 
| USD961953S1 (en)* | 2021-05-24 | 2022-08-30 | Menu A/S | Dining chair | 
| Publication number | Publication date | 
|---|---|
| AU201615743S (en) | 2016-11-11 | 
| CA170997S (en) | 2017-10-27 | 
| JP1584518S (en) | 2017-08-28 | 
| Publication | Publication Date | Title | 
|---|---|---|
| USD933792S1 (en) | Bathtub | |
| USD876139S1 (en) | Seating arrangement | |
| USD821793S1 (en) | Seating shell | |
| USD853152S1 (en) | Cushion | |
| USD828702S1 (en) | Headrest | |
| USD845675S1 (en) | Cushion | |
| USD802990S1 (en) | Skillet | |
| USD807703S1 (en) | Cup | |
| USD846897S1 (en) | Bicycle seat | |
| USD781604S1 (en) | Chair | |
| USD808187S1 (en) | Seating shell | |
| USD802951S1 (en) | Chair | |
| USD781605S1 (en) | Chair | |
| USD804840S1 (en) | Chair | |
| USD846899S1 (en) | Bicycle seat | |
| USD804841S1 (en) | Chair | |
| USD804876S1 (en) | Chair | |
| USD799234S1 (en) | Chair | |
| USD802313S1 (en) | Lounger | |
| USD876140S1 (en) | Seating arrangement | |
| USD814823S1 (en) | Seat | |
| USD804839S1 (en) | Chair | |
| USD804209S1 (en) | Chair | |
| USD804875S1 (en) | Chair | |
| USD802952S1 (en) | Chair |