B63H 23/30
Transmitting power from propulsion power plant to propulsive elements: characterised by use
Official title: characterised by use of clutches
B63H23/30 (Transmitting power from propulsion power plant to propulsive elements: characterised by use) appears on 303 US grants and 214 published applications in this corpus.
Search patents in B63H- Granted patents
- 303
- Published applications
- 214
- Assignees
- 99
- Inventors
- 458
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 11 | 0 |
| 2001 | 3 | 2 |
| 2002 | 9 | 2 |
| 2003 | 3 | 4 |
| 2004 | 5 | 4 |
| 2005 | 7 | 4 |
| 2006 | 5 | 6 |
| 2007 | 8 | 10 |
| 2008 | 7 | 9 |
| 2009 | 3 | 20 |
| 2010 | 6 | 13 |
| 2011 | 13 | 4 |
| 2012 | 18 | 10 |
| 2013 | 6 | 8 |
| 2014 | 8 | 1 |
| 2015 | 6 | 10 |
| 2016 | 9 | 13 |
| 2017 | 16 | 9 |
| 2018 | 10 | 13 |
| 2019 | 15 | 6 |
| 2020 | 7 | 7 |
| 2021 | 14 | 14 |
| 2022 | 7 | 18 |
| 2023 | 11 | 11 |
| 2024 | 10 | 6 |
| 2025 | 10 | 7 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Low-resistance amphibious vehicle6 Oct 2026US 12,752,582 B2Shenzhen Hesby Marine Technology Co., LTD
- Outboard motor22 Sep 2026US 12,741,727 B2Suzuki Motor Corporation
- Marine propulsion device21 Apr 2026US 12,606,290 B2Yamaha Hatsudoki Kabushiki Kaisha
- Ship control method, ship control program, and ship control system, and ship30 Dec 2025US 12,509,205 B2Yanmar Holdings Co., Ltd.
- Marine propulsion device with simplified wiring of power lines9 Dec 2025US 12,491,978 B2Yamaha Hatsudoki Kabushiki Kaisha
- Waterjet-propelled vessel8 Oct 2026US 2026/0307772 A1Kanzaki Kokyukoki Mfg.Co., Ltd.
- Low-resistance amphibious vehicle12 Mar 2026US 2026/0070383 A1Shenzhen Hesby Marine Technology Co., LTD
- Marine propulsion device29 Jan 2026US 2026/0028109 A1Suzuki Motor Corporation
- Marine propulsion device9 Oct 2025US 2025/0313324 A1Yamaha Hatsudoki Kabushiki Kaisha
- Advanced crash reversal propulsion system for marine vessel28 Aug 2025US 2025/0269942 A1Caterpillar Inc.
Most cited
By later US patents
- Marine transmission with a cone clutch used for direct transfer of torque1,430US 6,960,107 B1Brunswick Corporation · 2005
- Synchronizer for a gear shift mechanism for a marine propulsion system1,418US 6,062,360 ABrunswick Corporation · 2000
- Multi-speed marine propulsion system with automatic shifting mechanism60US 5,711,742 ABrunswick Corporation · 1998
- Electronic shut off systems43US 7,335,071 B1Maruta Electric Boatworks LLC · 2008
- Twin propeller marine propulsion unit37US 5,766,047 ABrunswick Corporation · 1998