B63H 1/00
Propulsive elements directly acting on water
Official title: Propulsive elements directly acting on water (jet propulsion B63H11/00)
B63H1/00 (Propulsive elements directly acting on water) appears on 1,452 US grants and 1,148 published applications in this corpus.
Search patents in B63H- Granted patents
- 1,452
- Published applications
- 1,148
- Assignees
- 514
- Inventors
- 2,105
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 13 | 0 |
| 1978 | 14 | 0 |
| 1979 | 8 | 0 |
| 1980 | 14 | 0 |
| 1981 | 19 | 0 |
| 1982 | 9 | 0 |
| 1983 | 8 | 0 |
| 1984 | 11 | 0 |
| 1985 | 9 | 0 |
| 1986 | 14 | 0 |
| 1987 | 13 | 0 |
| 1988 | 11 | 0 |
| 1989 | 16 | 0 |
| 1990 | 25 | 0 |
| 1991 | 13 | 0 |
| 1992 | 14 | 0 |
| 1993 | 26 | 0 |
| 1994 | 25 | 0 |
| 1995 | 24 | 0 |
| 1996 | 18 | 0 |
| 1997 | 12 | 0 |
| 1998 | 28 | 0 |
| 1999 | 22 | 0 |
| 2000 | 27 | 0 |
| 2001 | 30 | 6 |
| 2002 | 24 | 22 |
| 2003 | 28 | 25 |
| 2004 | 26 | 28 |
| 2005 | 25 | 27 |
| 2006 | 33 | 41 |
| 2007 | 18 | 17 |
| 2008 | 20 | 28 |
| 2009 | 17 | 36 |
| 2010 | 17 | 25 |
| 2011 | 18 | 32 |
| 2012 | 18 | 38 |
| 2013 | 25 | 38 |
| 2014 | 34 | 52 |
| 2015 | 41 | 78 |
| 2016 | 59 | 45 |
| 2017 | 57 | 53 |
| 2018 | 51 | 53 |
| 2019 | 57 | 49 |
| 2020 | 51 | 63 |
| 2021 | 54 | 60 |
| 2022 | 60 | 102 |
| 2023 | 73 | 69 |
| 2024 | 87 | 73 |
| 2025 | 72 | 51 |
| 2026 | 38 | 37 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B63H 1/02Propulsive elements directly acting on water: of rotary type1,110
- B63H 1/30Propulsive elements directly acting on water: of non-rotary type337
- B63H 1/38Propulsive elements directly acting on water: characterised solely by flotation properties31
- B63H 2001/005Propulsive elements directly acting on water: using magnus effectIndexing code4
Recent patents
- Robotic fish with controlled bistable elastic propulsion system6 Oct 2026US 12,752,893 B2City University of Hong Kong
- Fluid propulsion system6 Oct 2026US 12,753,694 B23Silk, Inc.
- Cyclorotors29 Sep 2026US 12,747,013 B2GE Energy Power Conversion Technology Limited
- Amphibious vehicle systems22 Sep 2026US 12,741,493 B2
- Marine propeller with winglets and method of design thereof15 Sep 2026US 12,735,159 B1Brunswick Corporation
- Variable toroidal propeller1 Oct 2026US 2026/0296613 A1Alpraaz AB
- Cycloidal marine propulsion system1 Oct 2026US 2026/0296621 A1
- Propulsion system of boat1 Oct 2026US 2026/0296622 A1Honda Motor Co., Ltd.
- Electric outboard machine24 Sep 2026US 2026/0285462 A1Suzuki Motor Corporation
- Electric outboard machine24 Sep 2026US 2026/0285463 A1Suzuki Motor Corporation
Most cited
By later US patents
- Expandable impeller pump391US 7,393,181 B2Datascope Investment Corp. · 2008
- Marine propeller with breakaway hub297US 5,201,679 AAttwood Corporation · 1993
- Expandable impeller pump296US 7,927,068 B2The Penn State Research Foundation · 2011
- Expandable impeller pump197US 8,376,707 B2The Penn State Research Foundation · 2013
- Propeller hub assembly having overlap zone with optional removable exhaust ring and sized ventilation plugs140US 7,056,091 B22006