B63B 21/502
By means of tension legs
Official title: {by means of tension legs}
B63B21/502 (By means of tension legs) appears on 455 US grants and 320 published applications in this corpus.
Search patents in B63B- Granted patents
- 455
- Published applications
- 320
- Assignees
- 232
- Inventors
- 708
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 14 | 0 |
| 1987 | 9 | 0 |
| 1988 | 9 | 0 |
| 1989 | 15 | 0 |
| 1990 | 14 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 8 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 1 |
| 2002 | 13 | 15 |
| 2003 | 14 | 13 |
| 2004 | 11 | 15 |
| 2005 | 12 | 18 |
| 2006 | 19 | 12 |
| 2007 | 6 | 14 |
| 2008 | 13 | 14 |
| 2009 | 8 | 17 |
| 2010 | 5 | 15 |
| 2011 | 6 | 10 |
| 2012 | 7 | 7 |
| 2013 | 13 | 11 |
| 2014 | 12 | 11 |
| 2015 | 8 | 17 |
| 2016 | 8 | 15 |
| 2017 | 17 | 6 |
| 2018 | 7 | 15 |
| 2019 | 16 | 11 |
| 2020 | 12 | 11 |
| 2021 | 9 | 7 |
| 2022 | 8 | 16 |
| 2023 | 9 | 12 |
| 2024 | 12 | 10 |
| 2025 | 10 | 17 |
| 2026 | 5 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Floating platform device for a wind turbine tower and assembly method16 Jun 2026US 12,655,828 B2Bluenewables Sl
- Mooring arrangement for a tension leg platform2 Jun 2026US 12,643,635 B2Marine Power Systems Limited
- Offshore anchoring methods and systems2 Jun 2026US 12,643,636 B2Marinhub AS
- Systems, devices and methods for monitoring support platform structural conditions5 May 2026US 12,618,729 B2Astro Technology Group, LLC
- Buoyant rotatable marine transducer31 Mar 2026US 12,589,837 B2Dublin Offshore Consultants Ltd
- Tendon for a tension leg platform and tension leg platform including such tendon3 Sep 2026US 2026/0257770 A1Cabin Air Group B.V.
- Floating offshore structure27 Aug 2026US 2026/0249956 A1Petroliam Nasional Berhad (Petronas)
- Floating offshore structure27 Aug 2026US 2026/0249957 A1Petroliam Nasional Berhad (Petronas)
- Marine terminals and processes for using same23 Jul 2026US 2026/0208827 A1Sofec, Inc.
- Vortex-induced vibration (viv) suppression apparatus and method of installation14 May 2026US 2026/0132584 A1J Ray McDermott S. A
Most cited
By later US patents
- Subsea wellbore drilling system for reducing bottom hole pressure97US 6,415,877 B1Deep Vision Inc. · 2002
- Floating/tensioned production system with caisson69US 4,913,238 AExxon Production Research Company · 1990
- Aramid composite well riser for deep water offshore structures66US 4,728,224 AConoco Inc. · 1988
- Subsea wellbore drilling system for reducing bottom hole pressure64US 6,648,081 B2Deep Vision Inc. · 2003
- Controlled pressure multi-cylinder riser tensioner and method61US 5,846,028 AHydraLift, Inc. · 1998