B63B 21/50
Anchoring arrangements or methods for special vessels
Official title: Anchoring arrangements {or methods} for special vessels, e.g. for floating drilling platforms or dredgers
B63B21/50 (Anchoring arrangements or methods for special vessels) appears on 1,375 US grants and 1,167 published applications in this corpus.
Search patents in B63B- Granted patents
- 1,375
- Published applications
- 1,167
- Assignees
- 630
- Inventors
- 2,208
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 4 | 0 |
| 1978 | 17 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 14 | 0 |
| 1982 | 14 | 0 |
| 1983 | 14 | 0 |
| 1984 | 22 | 0 |
| 1985 | 11 | 0 |
| 1986 | 21 | 0 |
| 1987 | 19 | 0 |
| 1988 | 18 | 0 |
| 1989 | 19 | 0 |
| 1990 | 17 | 0 |
| 1991 | 15 | 0 |
| 1992 | 12 | 0 |
| 1993 | 14 | 0 |
| 1994 | 17 | 0 |
| 1995 | 15 | 0 |
| 1996 | 19 | 0 |
| 1997 | 8 | 0 |
| 1998 | 29 | 0 |
| 1999 | 29 | 0 |
| 2000 | 26 | 0 |
| 2001 | 28 | 3 |
| 2002 | 39 | 31 |
| 2003 | 33 | 33 |
| 2004 | 25 | 32 |
| 2005 | 28 | 40 |
| 2006 | 35 | 27 |
| 2007 | 20 | 31 |
| 2008 | 24 | 33 |
| 2009 | 22 | 44 |
| 2010 | 21 | 42 |
| 2011 | 23 | 43 |
| 2012 | 23 | 39 |
| 2013 | 36 | 41 |
| 2014 | 49 | 46 |
| 2015 | 35 | 70 |
| 2016 | 41 | 64 |
| 2017 | 65 | 54 |
| 2018 | 45 | 58 |
| 2019 | 72 | 61 |
| 2020 | 51 | 55 |
| 2021 | 50 | 44 |
| 2022 | 38 | 60 |
| 2023 | 37 | 58 |
| 2024 | 46 | 60 |
| 2025 | 50 | 55 |
| 2026 | 35 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B63B 21/502By means of tension legs455
- B63B 21/507With mooring turrets320
- B63B 2021/505Methods for installation or mooring of floating offshore platforms on siteIndexing code169
- B63B 2021/501By means of articulated towers, i.e. slender substantially vertically arranged structures articulatedIndexing code16
Recent patents
- Mud floating type offshore wind turbine system and installation method thereof6 Oct 2026US 12,753,740 B2China Power Engineering Consulting Group Co., Ltd.
- Waterway sensor15 Sep 2026US 12,735,158 B2
- Mooring apparatus8 Sep 2026US 12,728,960 B2
- Water and land-based modular system for environmentally versatile housing, shelter and commercial use11 Aug 2026US 12,703,461 B2
- Seabed connection hub4 Aug 2026US 12,698,058 B2Reflex Marine Ltd.
- Floating platform, in particular for an offshore wind turbine, having improved stability1 Oct 2026US 2026/0296602 A1Coffratherm
- Underwater anchoring devices, systems, and methods24 Sep 2026US 2026/0285446 A1Verterra Energy Inc.
- Tendon for a tension leg platform and tension leg platform including such tendon3 Sep 2026US 2026/0257770 A1Cabin Air Group B.V.
- Multifunctional Integrated Platform3 Sep 2026US 2026/0257775 A1Huaneng Clean Energy Research Institute
- Floating offshore wind turbine apparatus and installation method3 Sep 2026US 2026/0258787 A1
Most cited
By later US patents
- Subsea wellbore drilling system for reducing bottom hole pressure97US 6,415,877 B1Deep Vision Inc. · 2002
- Vessel mooring system88US 4,604,961 AExxon Production Research Company · 1986
- Floating/tensioned production system with caisson69US 4,913,238 AExxon Production Research Company · 1990
- Method and system for offshore production of liquefied natural gas68US 6,003,603 ADen Norske Stats Ol jesel skap A.S. · 1999
- Aramid composite well riser for deep water offshore structures66US 4,728,224 AConoco Inc. · 1988