B63B 21/34
With two or more flukes
Official title: with two or more flukes
B63B21/34 (With two or more flukes) appears on 31 US grants and 24 published applications in this corpus.
Search patents in B63B- Granted patents
- 31
- Published applications
- 24
- Assignees
- 16
- Inventors
- 48
- Latest grant
- 28 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 3 | 2 |
| 2018 | 2 | 3 |
| 2019 | 3 | 3 |
| 2020 | 2 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- 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.
- Radial arm double shank split crown self-releasing mechanism anchor8 Dec 2020US 10,858,074 B1
- Anchor for a ship22 Sep 2020US 10,780,953 B2Pskorea
- Anchor with angle adjustment provision8 Oct 2019US 10,435,116 B2Stevlos B.V.
- Boat anchor and winch assembly2 Oct 2025US 2025/0304215 A1Lone Star Marine Pty Ltd
- An anchor for a watercraft11 Jan 2024US 2024/0010303 A1
- Collapsable anchor9 Feb 2023US 2023/0043734 A1Sandshark, Inc.
- Hybrid dynamically installed anchor with a folding shank and control method for keep anchor verticality during free fall in water25 Nov 2021US 2021/0362810 A1Dalian University of Technology
- Watercraft anchors3 Oct 2019US 2019/0300126 A1
Most cited
By later US patents