B63H 11/103
Having means to increase efficiency of propulsive fluid
Official title: having means to increase efficiency of propulsive fluid, e.g. discharge pipe provided with means to improve the fluid flow
B63H11/103 (Having means to increase efficiency of propulsive fluid) appears on 73 US grants and 43 published applications in this corpus.
Search patents in B63H- Granted patents
- 73
- Published applications
- 43
- Assignees
- 35
- Inventors
- 113
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 3 | 2 |
| 2006 | 4 | 4 |
| 2007 | 2 | 3 |
| 2008 | 1 | 1 |
| 2009 | 2 | 2 |
| 2010 | 3 | 1 |
| 2011 | 0 | 4 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 3 | 1 |
| 2015 | 3 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 4 |
| 2022 | 4 | 2 |
| 2023 | 2 | 2 |
| 2024 | 2 | 4 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water jet propulsion boat7 Jul 2026US 12,673,757 B2Yamaha Hatsudoki Kabushiki Kaisha
- Water jet propulsion unit for water borne craft4 Nov 2025US 12,459,617 B2
- Thrust enhancing device22 Oct 2024US 12,123,371 B2
- Propulsion enhancing device and watercraft comprising same30 Jan 2024US 11,884,373 B2Vortex Pipe Systems LLC
- Underwater thruster17 Oct 2023US 11,787,521 B2Oriental Recreational Products (Shanghai) Co., Ltd
- Compliant nozzle system and method for fluid jet impulse17 Sep 2026US 2026/0274388 A1Georgia Tech Research Corporation
- Water Jet Propulsion Unit for Water Borne Craft30 Jan 2025US 2025/0033751 A1
- Jet systems for a water sport apparatus2 Jan 2025US 2025/0002121 A1Fliteboard Pty Ltd
- Fluid-based propulsive motor5 Dec 2024US 2024/0400181 A1Air Mobility, LLC
- Water jet propulsion boat12 Sep 2024US 2024/0300631 A1Yamaha Hatsudoki Kabushiki Kaisha
Most cited
By later US patents
- Water injection propulsion unit44US 5,244,425 ASanshin Kogyo Kabushiki Kaisha · 1993
- Surface effect boat with jet propulsion engines house in keel formed cavities38US 6,220,193 B12001
- Underwater two phase ramjet engine25US 5,598,700 ADimotech Ltd. · 1997
- Movable ramp inlet for water jet propelled ships22US 3,942,463 AThe United States of America as represented by the Secretary of the Navy · 1976
- Small, jet-propelled boat21US 5,199,913 ASanshin Kogyo Kabushiki Kaisha · 1993