B63B 21/243
Foldable or capable of being disassembled
Official title: {foldable or capable of being disassembled (Anchors with two or more foldable flukes B63B21/36)}
B63B21/243 (Foldable or capable of being disassembled) appears on 69 US grants and 43 published applications in this corpus.
Search patents in B63B- Granted patents
- 69
- Published applications
- 43
- Assignees
- 23
- Inventors
- 108
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 3 |
| 2005 | 3 | 1 |
| 2006 | 2 | 4 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 1 | 2 |
| 2014 | 2 | 2 |
| 2015 | 2 | 2 |
| 2016 | 1 | 2 |
| 2017 | 3 | 0 |
| 2018 | 3 | 3 |
| 2019 | 1 | 3 |
| 2020 | 1 | 3 |
| 2021 | 1 | 4 |
| 2022 | 3 | 3 |
| 2023 | 5 | 3 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for controlling a marine vessel using a single operator command17 Feb 2026US 12,552,513 B2Dometic Marine Canada Inc.
- Support system for outboard marine motors at the transom of a boat12 Aug 2025US 12,384,495 B2
- Self-retrieving anchor (SRA)2 Jan 2024US 11,858,593 B2Sardine Marine, LLC
- Hybrid dynamically installed anchor with a folding shank and control method for keep anchor verticality during free fall in water28 Nov 2023US 11,827,314 B2Dalian University of Technology
- Collapsable anchor12 Sep 2023US 11,753,117 B2Sandshark, Inc.
- System for controlling a marine vessel using a single operator command11 Jun 2026US 2026/0159212 A1Dometic Marine Canada Inc.
- An anchor for a watercraft11 Jan 2024US 2024/0010303 A1
- System for controlling a marine vessel using a single operator command28 Sep 2023US 2023/0303235 A1Dometic Marine Canada Inc.
- Self-Retrieving Anchor (SRA)30 Mar 2023US 2023/0099887 A1Sardine Marine, LLC
- Collapsable anchor9 Feb 2023US 2023/0043734 A1Sandshark, Inc.
Most cited
By later US patents
- Retractable grappling hook27US 6,079,761 AThe United States of America as represented by the Secretary of the Army · 2000
- Mooring system18US 6,223,671 B12001
- Collapsible anchor having releasable flukes14US 5,095,842 A1992
- Collapsible grappling hook13US 6,948,751 B2Tactical & Rescue Equipment, LLC · 2005
- Deployable and autonomous mooring system13US 7,179,145 B2Florida Atlantic Avenue · 2007