B63C 9/135
Using solid buoyant material
Official title: using solid buoyant material
B63C9/135 (Using solid buoyant material) appears on 41 US grants and 24 published applications in this corpus.
Search patents in B63C- Granted patents
- 41
- Published applications
- 24
- Assignees
- 9
- Inventors
- 60
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 4 | 3 |
| 2003 | 2 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 3 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Automotive headrest with emergency adaptations21 Apr 2026US 12,606,069 B2
- Floating physical therapy device13 Feb 2024US 11,896,548 B2
- Swim aid device and method of use thereof16 Jan 2024US 11,873,069 B2
- Flotation vest with repositionable collar member28 Nov 2023US 11,827,320 B2Aqua-Leisure Recreation, LLC
- Rescue stretcher with integrated harness26 Apr 2022US 11,311,430 B2Skedco, Inc.
- Automotive Headrest with Emergency Adaptations25 Dec 2025US 2025/0388157 A1
- Flotation device29 Jun 2023US 2023/0202626 A1
- Flotation vest with repositionable collar member3 Nov 2022US 2022/0348299 A1Aqua-Leisure Recreation, LLC
- Swim aid device and method of use thereof2 Sep 2021US 2021/0269130 A1
- Floating physical therapy device13 May 2021US 2021/0137783 A1The University of Hartford
Most cited
By later US patents