B63H 1/14
Propellers
Official title: Propellers (pitch changing B63H3/00)
B63H1/14 (Propellers) appears on 902 US grants and 677 published applications in this corpus.
Search patents in B63H- Granted patents
- 902
- Published applications
- 677
- Assignees
- 330
- Inventors
- 1,305
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 8 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 11 | 0 |
| 1981 | 13 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 8 | 0 |
| 1986 | 8 | 0 |
| 1987 | 8 | 0 |
| 1988 | 7 | 0 |
| 1989 | 11 | 0 |
| 1990 | 16 | 0 |
| 1991 | 8 | 0 |
| 1992 | 11 | 0 |
| 1993 | 22 | 0 |
| 1994 | 18 | 0 |
| 1995 | 16 | 0 |
| 1996 | 13 | 0 |
| 1997 | 8 | 0 |
| 1998 | 22 | 0 |
| 1999 | 13 | 0 |
| 2000 | 15 | 0 |
| 2001 | 25 | 2 |
| 2002 | 20 | 17 |
| 2003 | 18 | 18 |
| 2004 | 18 | 17 |
| 2005 | 13 | 15 |
| 2006 | 20 | 24 |
| 2007 | 11 | 10 |
| 2008 | 12 | 20 |
| 2009 | 11 | 20 |
| 2010 | 9 | 12 |
| 2011 | 10 | 20 |
| 2012 | 13 | 20 |
| 2013 | 16 | 21 |
| 2014 | 15 | 23 |
| 2015 | 15 | 43 |
| 2016 | 32 | 20 |
| 2017 | 23 | 38 |
| 2018 | 30 | 35 |
| 2019 | 38 | 32 |
| 2020 | 36 | 37 |
| 2021 | 28 | 40 |
| 2022 | 43 | 62 |
| 2023 | 46 | 37 |
| 2024 | 54 | 47 |
| 2025 | 50 | 24 |
| 2026 | 19 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B63H 1/20Hubs216
- B63H 1/26Blades187
- B63H 1/18With means for diminishing cavitation169
- B63H 1/28Other means for improving propeller efficiency154
- B63H 1/16Having a shrouding ring attached to blades134
- B63H 1/15Having vibration damping means28
- B63H 2001/145Comprising blades of two or more different typesIndexing code18
Recent patents
- 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
- Energy-saving arrangement for twin-screw ships25 Aug 2026US 12,715,564 B2Becker Marine Systems GmbH & Co.KG
- Beaching propeller11 Aug 2026US 12,703,468 B2Raider Outboards, Inc.
- Hydrojet propulsion system28 Jul 2026US 12,691,977 B2Kai Concepts, LLC
- Variable toroidal propeller1 Oct 2026US 2026/0296613 A1Alpraaz AB
- 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
- Propeller with folding blades and propulsion system10 Sep 2026US 2026/0264822 A1Velettrica S.R.L.
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