B63C 11/30
Ballast
Official title: Ballast {(weights worn on user's body for exercising A63B21/065)}
B63C11/30 (Ballast) appears on 100 US grants and 60 published applications in this corpus.
Search patents in B63C- Granted patents
- 100
- Published applications
- 60
- Assignees
- 31
- Inventors
- 125
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 3 |
| 2003 | 7 | 6 |
| 2004 | 5 | 4 |
| 2005 | 2 | 3 |
| 2006 | 4 | 0 |
| 2007 | 1 | 1 |
| 2008 | 2 | 2 |
| 2009 | 1 | 5 |
| 2010 | 1 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 2 |
| 2015 | 1 | 3 |
| 2016 | 3 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 2 | 6 |
| 2020 | 2 | 0 |
| 2021 | 3 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 3 |
| 2024 | 2 | 4 |
| 2025 | 3 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Free diving weight belts with accessory attachments3 Feb 2026US 12,539,949 B2
- Weight pocket liner for buoyancy control device (BCD)21 Oct 2025US 12,448,096 B2Lary Z Enterprises, Inc.
- Fastening device for air cylinder1 Jul 2025US 12,342,908 B2Tabata Co., Ltd.
- Buoyancy control device for scuba diving20 May 2025US 12,304,601 B2Cressi-Sub S.p.A.
- Backrest provided with a support for fastening a weight pocket6 Aug 2024US 12,054,230 B2Cressi-Sub S.p.A.
- Apparatus constrainable to a diver for buoyancy control4 Dec 2025US 2025/0368305 A1
- Buoyancy Compensator Integrated Weight System31 Jul 2025US 2025/0242898 A1Johnson Outdoors Inc.
- Diving Backplate10 Jul 2025US 2025/0223020 A1Aotis Development Ltd.
- Free Diving Weight Belts with Accessory Attachments15 May 2025US 2025/0153820 A1
- Weight pocket liner for buoyancy control device (bcd)8 Aug 2024US 2024/0262473 A1Lary Z Enterprises, Inc.
Most cited
By later US patents
- Divers weight belt75US 4,440,525 AH.I.M. Inc. · 1984
- Rigid diver backpack with internal buoyancy compensator and ballast compartment62US 4,779,554 A1988
- Custom underwater diving system57US 4,752,263 ACuda International Corporation · 1988
- Garment integrated personal flotation device49US 6,659,689 B12003
- Combination buoyancy compensator and support for a diver's backpack with a swivel buckle and triangular holder45US 5,860,769 ASeaQuest, Inc. · 1999