| US3924415A (en)* | 1974-12-30 | 1975-12-09 | Santa Fe Int Corp | Column stabilized semisubmersible pipelaying barge |
| US3987640A (en)* | 1974-12-30 | 1976-10-26 | Santa Fe International Corporation | Column stabilized semisubmersible pipelaying barge |
| US4075964A (en)* | 1975-08-29 | 1978-02-28 | Global Marine, Inc. | Ice melting system |
| US4369725A (en)* | 1978-06-30 | 1983-01-25 | Mitsui Engineering & Shipbuilding Co., Ltd. | Method and means for increasing the maneuverability of a ship in ice-covered waters |
| US4260292A (en)* | 1979-10-25 | 1981-04-07 | The Offshore Company | Arctic offshore platform |
| US4433941A (en) | 1980-05-12 | 1984-02-28 | Mobil Oil Corporation | Structure for offshore exploitation |
| FI64919B (en)* | 1982-06-15 | 1983-10-31 | Waertsilae Oy Ab | FLYTANDE BORRNINGSPLATTFORM |
| US4646672A (en)* | 1983-12-30 | 1987-03-03 | William Bennett | Semi-subersible vessel |
| GB2169859B (en)* | 1984-12-03 | 1988-02-17 | Brown & Root | Semi-submersible lifting vessels |
| UA83357C2 (en)* | 2005-07-11 | 2008-07-10 | Открытое Акционерное Общество «Центральное Конструкторское Бюро «Коралл» | Sea ice-proof platform |
| WO2007097610A1 (en)* | 2006-02-27 | 2007-08-30 | Heerema Marine Contractors Nederland B.V. | Semi-submersible vessel, method for operating a semi-submersible vessel and method for manufacturing a semi-submersible vessel |
| KR20110137774A (en) | 2009-03-10 | 2011-12-23 | 베르트질레 쉽 디자인 저매니 게엠베하 | Icebreaking system for floaters |
| KR101583494B1 (en) | 2009-04-30 | 2016-01-08 | 엑손모빌 업스트림 리서치 캄파니 | Mooring system for floating arctic vessel |
| US20110174206A1 (en)* | 2010-01-19 | 2011-07-21 | Kupersmith John A | Wave attenuating large ocean platform |
| KR101687857B1 (en)* | 2010-03-31 | 2016-12-28 | 메르스크 서플라이 서비스 에이/에스 | Icebreaking vessel and method of breaking ice |
| US9056658B2 (en)* | 2010-03-31 | 2015-06-16 | Maersk Supply Service A/S | Icebreaking vessel |
| DK177707B1 (en)* | 2010-03-31 | 2014-03-24 | Maersk Supply Service As | Method of breaking ice |
| WO2011120527A2 (en)* | 2010-03-31 | 2011-10-06 | Maersk Supply Service A/S | An icebreaking vessel |
| US9242705B2 (en)* | 2010-03-31 | 2016-01-26 | Maersk Supply Service A/S | Icebreaking vessel and method of breaking ice |
| US20120291684A1 (en)* | 2011-05-19 | 2012-11-22 | Gavin Humphreys | Ice Breaking Drilling Vessel With Stowable Mast |
| RU2529098C2 (en)* | 2012-12-10 | 2014-09-27 | Евгений Михайлович Герасимов | Semisubmersible catamaran-type drilling platform |
| USD741778S1 (en)* | 2013-04-12 | 2015-10-27 | Fincantieri S.P.A. | Fore part of a drilling ship |
| USD751970S1 (en)* | 2014-04-24 | 2016-03-22 | Fincantieri S.P.A. | Drillship |
| TWI767158B (en)* | 2019-04-02 | 2022-06-11 | 國立臺灣海洋大學 | Wave sheltering vessel |
| NL2023601B1 (en)* | 2019-08-02 | 2021-02-23 | Itrec Bv | Semi-submersible floating offshore vessel |