B63C 7/26
Means for indicating the location of underwater objects
Official title: Means for indicating the location of underwater objects, e.g. sunken vessels (means for searching for underwater objects B63C11/48; buoys in general B63B22/00)
B63C7/26 (Means for indicating the location of underwater objects) appears on 116 US grants and 71 published applications in this corpus.
Search patents in B63C- Granted patents
- 116
- Published applications
- 71
- Assignees
- 51
- Inventors
- 195
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 9 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 1 |
| 2003 | 1 | 3 |
| 2004 | 4 | 3 |
| 2005 | 0 | 1 |
| 2006 | 4 | 0 |
| 2007 | 2 | 3 |
| 2008 | 1 | 0 |
| 2009 | 0 | 4 |
| 2010 | 1 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 2 |
| 2013 | 6 | 6 |
| 2014 | 4 | 5 |
| 2015 | 4 | 5 |
| 2016 | 4 | 5 |
| 2017 | 3 | 3 |
| 2018 | 3 | 3 |
| 2019 | 3 | 3 |
| 2020 | 2 | 3 |
| 2021 | 3 | 4 |
| 2022 | 3 | 5 |
| 2023 | 2 | 3 |
| 2024 | 5 | 4 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Positioning and rescue device for unmanned underwater vehicle23 Sep 2025US 12,420,897 B2Beibu Gulf University
- System for retrieval of objects lost in water14 Jan 2025US 12,195,141 B2Cmar AB
- Fishing tool loss monitoring system and method15 Oct 2024US 12,116,093 B2
- Method, apparatus and system for recovering a sailing vessel20 Aug 2024US 12,065,222 B2SubSeaSail LLC
- Underwater work system23 Apr 2024US 11,964,745 B2Kawasaki Jukogyo Kabushiki Kaisha
- System and method for recovery of autonomous underwater vehicles19 Feb 2026US 2026/0048826 A1Impossible Metals Inc.
- Method, apparatus and system for recovering a sailing vessel26 Dec 2024US 2024/0425155 A1SubSeaSail LLC
- Surfacing device, information management device, and detachable moving body17 Oct 2024US 2024/0343361 A1Amuza Japan Co., Ltd.
- Floating marker buoy30 May 2024US 2024/0174332 A1
- Passive Sonar Identification System for Underwater Lift Bags and Flags11 Jan 2024US 2024/0012122 A1Crab Raft, Inc.
Most cited
By later US patents
- Submersible and retrievable buoy32US 6,261,142 B1Fiomarine Investments Pty. Ltd. · 2001
- Apparatus for mounting underwater marine detection equipment on a waterborne vessel28US 7,036,451 B12006
- Buoyant float and flag assembly26US 4,123,813 A1978
- Automatic flotation release system24US 4,433,638 A1984
- Marker buoy22US 4,501,563 A1985