B63B 21/58
Adaptations of hooks for towing
Official title: Adaptations of hooks for towing; Towing-hook mountings (hooks in general F16B)
B63B21/58 (Adaptations of hooks for towing) appears on 118 US grants and 54 published applications in this corpus.
Search patents in B63B- Granted patents
- 118
- Published applications
- 54
- Assignees
- 61
- Inventors
- 195
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 3 | 2 |
| 2007 | 2 | 2 |
| 2008 | 0 | 2 |
| 2009 | 4 | 0 |
| 2010 | 2 | 0 |
| 2011 | 2 | 1 |
| 2012 | 1 | 1 |
| 2013 | 2 | 2 |
| 2014 | 2 | 3 |
| 2015 | 2 | 2 |
| 2016 | 5 | 2 |
| 2017 | 1 | 7 |
| 2018 | 3 | 5 |
| 2019 | 6 | 2 |
| 2020 | 2 | 7 |
| 2021 | 6 | 2 |
| 2022 | 7 | 2 |
| 2023 | 2 | 2 |
| 2024 | 0 | 3 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- System and method for launch and recovery of a marine vessel9 Dec 2025US 12,491,968 B2Sealartec Ltd.
- Mechanical attachment mechanism with catchment fingers engaging curved grooves2 Dec 2025US 12,486,003 B2The United States of America as represented by the Secretary of the Navy
- System for recovering a surface marine craft from a carrier ship3 Oct 2023US 11,772,751 B2Eca Robotics
- System and method for launch and recovery of a marine vessel6 Jun 2023US 11,667,355 B2Sealartec Ltd.
- Acoustic-electric remote control release hook used on water and underwater18 Oct 2022US 11,473,335 B1First Institute of Oceanography, Ministry of Natural Resources
- System and method for launch and recovery of a marine vessel4 Jul 2024US 2024/0217626 A1Sealartec Ltd.
- Water Transportation System including a Personal Watercraft, a Water Platform, and a Locking Device20 Jun 2024US 2024/0199174 A1Shanghai Yujet Co., Ltd.
- System and method for retrieving daughterboats to a mothership18 Apr 2024US 2024/0124098 A1Vestdavit Gruppen AS
- Mechanical Attachment Mechanism with Catchment Fingers Engaging Curved Grooves2 Nov 2023US 2023/0348023 A1The United States of America as represented by the Secretary of the Navy
- System and method for launch and recovery of a marine vessel17 Aug 2023US 2023/0257076 A1Sealartec Ltd.
Most cited
By later US patents
- Amusement raft ride53US 5,299,964 AO. D. Hopkins Associates, Inc. · 1994
- Rigid mooring arm quick disconnect28US 4,119,051 AChicago Bridge & Iron Company · 1978
- Remote controlled scuttling buoy24US 3,947,907 AExxon Research & Engineering Co. · 1976
- Underhull quick disconnect mooring system22US 4,033,277 ACanadian Marine Drilling Ltd. · 1977
- Releasable toggle locking mooring hook22US 5,123,374 A1992