B63H 21/20
The vessels being powered by combinations of different types of propulsion units
Official title: the vessels being powered by combinations of different types of propulsion units
B63H21/20 (The vessels being powered by combinations of different types of propulsion units) appears on 260 US grants and 313 published applications in this corpus.
Search patents in B63H- Granted patents
- 260
- Published applications
- 313
- Assignees
- 147
- Inventors
- 555
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 0 |
| 2004 | 1 | 3 |
| 2005 | 5 | 4 |
| 2006 | 5 | 9 |
| 2007 | 4 | 5 |
| 2008 | 5 | 11 |
| 2009 | 8 | 8 |
| 2010 | 4 | 9 |
| 2011 | 9 | 5 |
| 2012 | 5 | 19 |
| 2013 | 10 | 6 |
| 2014 | 14 | 8 |
| 2015 | 12 | 10 |
| 2016 | 10 | 6 |
| 2017 | 10 | 10 |
| 2018 | 11 | 21 |
| 2019 | 12 | 16 |
| 2020 | 15 | 14 |
| 2021 | 18 | 28 |
| 2022 | 19 | 29 |
| 2023 | 15 | 28 |
| 2024 | 18 | 31 |
| 2025 | 23 | 16 |
| 2026 | 14 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control device for battery of marine vessel, control method therefor, and marine vessel18 Aug 2026US 12,709,371 B2Yamaha Hatsudoki Kabushiki Kaisha
- Hybrid propulsion system for a pleasure boat14 Jul 2026US 12,679,521 B2Punch Torino S.P.A.
- Watercraft propulsion system, and watercraft26 May 2026US 12,637,188 B2Yamaha Hatsudoki Kabushiki Kaisha
- Marine propulsion system, outboard motor, and marine vessel14 Apr 2026US 12,600,451 B2Yamaha Hatsudoki Kabushiki Kaisha
- Compensating for ambient torsional loads affecting marine vessel propulsion14 Apr 2026US 12,600,452 B2
- Cycloidal marine propulsion system1 Oct 2026US 2026/0296621 A1
- Method and apparatus for controlling ship propulsion, and a propulsion system20 Aug 2026US 2026/0242042 A1Wartsila Netherlands B.V.
- Jet propulsion watercraft6 Aug 2026US 2026/0225703 A1Kawasaki Motors, Ltd.
- Marine propulsion system, outboard motor, and marine vessel30 Jul 2026US 2026/0217354 A1Yamaha Hatsudoki Kabushiki Kaisha
- A Hybrid Power Generation System for Unmanned Vessels with Configurable Generator Architecture and Advanced Power Quality Management23 Jul 2026US 2026/0208842 A1Electronic Power Design, Inc.
Most cited
By later US patents
- Marine hulls and drives97US 7,984,684 B22011
- Electric watercycle with variable electronic gearing and human power amplification69US 6,855,016 B12005
- Regenerative motor propulsion systems51US 7,482,767 B2Solomon Technologies, Inc. · 2009
- Hybrid propulsion systems46US 8,062,081 B2Foss Maritime Company · 2011
- Unmanned ocean vehicle44US 7,789,723 B2Solar Sailor Pty Ltd · 2010