| US4052983A (en)* | 1975-09-04 | 1977-10-11 | Bovender Coy R | Nasal filter |
| US4030491A (en)* | 1975-10-31 | 1977-06-21 | Alvin Mattila | Nasal filter |
| JPS5374745U (en)* | 1976-11-25 | 1978-06-22 | | |
| USD251017S (en) | 1977-01-28 | 1979-02-06 | Amezcua Saul O | Nasal device |
| JPS6043846U (en)* | 1983-08-31 | 1985-03-28 | 株式会社日立ホームテック | gas governor |
| JPS6043847U (en)* | 1983-08-31 | 1985-03-28 | 株式会社日立ホームテック | gas governor |
| JPS60176668A (en)* | 1984-02-21 | 1985-09-10 | 村田 松太郎 | Nostril filter by humidified sticky artificial vibrissa |
| JPS60180796U (en)* | 1984-05-11 | 1985-11-30 | 三洋電機株式会社 | pump equipment |
| JPS61138895U (en)* | 1985-02-20 | 1986-08-28 | | |
| US20040127969A1 (en)* | 1987-04-06 | 2004-07-01 | Lazarus Harrison M. | Artificial graft and implantation method |
| USD319878S (en) | 1988-07-14 | 1991-09-10 | Holland Bruce K | Nasal insert for absorbing mucus and the like |
| GB9422692D0 (en)* | 1994-04-22 | 1995-01-04 | Williamson John B | Disposable nasel band filter |
| GB9411023D0 (en)* | 1994-06-02 | 1994-07-20 | Hurlin Noreen | Filtration device |
| US5718224A (en)* | 1996-08-16 | 1998-02-17 | Muchin; Jerome D. | Transparent nasal dilator |
| US6098616A (en)* | 1998-03-13 | 2000-08-08 | Acutek International | Non-linear nasal dilator |
| FR2793148B1 (en) | 1999-05-07 | 2001-06-29 | Monique Desbois | DEVICE FOR POSITIONING A PROTECTIVE AND / OR FILTERING ELEMENT |
| DE29913892U1 (en)* | 1999-08-10 | 2000-12-21 | Gehmert, Karl-Heinz, 38302 Wolfenbüttel | Nose clip |
| US6722360B2 (en) | 2000-06-16 | 2004-04-20 | Rajiv Doshi | Methods and devices for improving breathing in patients with pulmonary disease |
| AU783636B2 (en)* | 2001-01-04 | 2005-11-17 | Herman Chiang | Nose clip |
| US7390331B2 (en)* | 2001-05-22 | 2008-06-24 | Sanostec Corp | Nasal inserts |
| US8403954B2 (en) | 2001-05-22 | 2013-03-26 | Sanostec Corp. | Nasal congestion, obstruction relief, and drug delivery |
| US7748383B1 (en)* | 2002-06-19 | 2010-07-06 | Soloway Michael S | Air filters |
| US6752149B2 (en) | 2002-07-25 | 2004-06-22 | Realaid, Inc. | Nasal mask with replaceable filter |
| US6971387B2 (en)* | 2003-09-19 | 2005-12-06 | Santa Barbara Medco | Personal air purifier |
| US9833354B2 (en) | 2004-12-08 | 2017-12-05 | Theravent, Inc. | Nasal respiratory devices |
| US8061357B2 (en) | 2004-12-08 | 2011-11-22 | Ventus Medical, Inc. | Adhesive nasal respiratory devices |
| EP1824544B1 (en)* | 2004-12-08 | 2013-06-05 | Ventus Medical, Inc. | Respiratory devices and methods of use |
| US10610228B2 (en) | 2004-12-08 | 2020-04-07 | Theravent, Inc. | Passive nasal peep devices |
| CA2653139C (en)* | 2006-05-23 | 2016-01-05 | Ventus Medical, Inc. | Nasal respiratory devices |
| CN101489630B (en)* | 2006-06-07 | 2013-10-23 | 温吐斯医学公司 | Layered nasal devices |
| US20110203598A1 (en)* | 2006-06-07 | 2011-08-25 | Favet Michael L | Nasal devices including layered nasal devices and delayed resistance adapters for use with nasal devices |
| EP2032213A4 (en)* | 2006-06-07 | 2014-02-19 | Theravent Inc | DEVICES FOR THE NOSE |
| US20080053448A1 (en)* | 2006-08-31 | 2008-03-06 | Liska Regina B | Nasal filter |
| ITMI20062334A1 (en)* | 2006-12-05 | 2008-06-06 | Emilio Talmon | AIR FILTER FOR ENDONASAL APPLICATION |
| TW200836781A (en)* | 2007-03-07 | 2008-09-16 | Ventus Medical Inc | Nasal devices |
| CN101305846B (en)* | 2007-05-16 | 2011-04-20 | 孙更生 | Artificial nose hair |
| CN101854975A (en)* | 2007-10-03 | 2010-10-06 | 桑诺斯泰克公司 | Nasal inserts |
| US8020700B2 (en)* | 2007-12-05 | 2011-09-20 | Ventus Medical, Inc. | Packaging and dispensing nasal devices |
| WO2009099995A1 (en)* | 2008-02-01 | 2009-08-13 | Ventus Medical, Inc. | Cpap interface and backup devices |
| US20090308398A1 (en)* | 2008-06-16 | 2009-12-17 | Arthur Ferdinand | Adjustable resistance nasal devices |
| US20110218451A1 (en)* | 2008-09-15 | 2011-09-08 | Danny Yu-Youh Lai | Nasal devices, systems and methods |
| US20130255690A1 (en)* | 2009-06-10 | 2013-10-03 | Alexander Luchinskiy | Method and Device for the Protection of a Resiratory Tract |
| US20110108041A1 (en)* | 2009-11-06 | 2011-05-12 | Elliot Sather | Nasal devices having a safe failure mode and remotely activatable |
| US8875711B2 (en) | 2010-05-27 | 2014-11-04 | Theravent, Inc. | Layered nasal respiratory devices |
| USD862601S1 (en) | 2016-07-07 | 2019-10-08 | Ccl Label, Inc. | Carrier assembly |
| US11413194B2 (en)* | 2017-01-12 | 2022-08-16 | Industrial Hygiene Consultants, Inc. | Protective face covering |
| US20220176281A1 (en)* | 2019-04-15 | 2022-06-09 | Northwestern University | Method and system for air filtration |
| USD944981S1 (en)* | 2020-07-28 | 2022-03-01 | Sinead McKeown | Nasal dilator |