F03B 17/02
Machines or engines for liquids: other machines or engines: using hydrostatic thrust
Official title: using hydrostatic thrust
F03B17/02 (Machines or engines for liquids: other machines or engines: using hydrostatic thrust) appears on 308 US grants and 425 published applications in this corpus.
Search patents in F03B- Granted patents
- 308
- Published applications
- 425
- Assignees
- 87
- Inventors
- 547
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 4 |
| 2003 | 3 | 6 |
| 2004 | 7 | 5 |
| 2005 | 2 | 12 |
| 2006 | 5 | 13 |
| 2007 | 2 | 8 |
| 2008 | 2 | 14 |
| 2009 | 3 | 19 |
| 2010 | 4 | 29 |
| 2011 | 14 | 20 |
| 2012 | 9 | 19 |
| 2013 | 18 | 25 |
| 2014 | 16 | 23 |
| 2015 | 14 | 30 |
| 2016 | 15 | 17 |
| 2017 | 13 | 15 |
| 2018 | 7 | 18 |
| 2019 | 11 | 31 |
| 2020 | 10 | 18 |
| 2021 | 16 | 15 |
| 2022 | 8 | 19 |
| 2023 | 18 | 19 |
| 2024 | 18 | 19 |
| 2025 | 19 | 19 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Buoyant compressed air energy storage25 Aug 2026US 12,716,400 B2Black & Veatch Corporation
- Energy transfer from a drum to a displacement element11 Aug 2026US 12,704,107 B2Honeywell International Inc.
- Rotating liquid filled wheel system21 Jul 2026US 12,687,148 B1
- Tank structures and fluid displacement devices14 Jul 2026US 12,680,529 B1
- System and method for converting potential energy into kinetic energy using buoyancy14 Jul 2026US 12,680,530 B1
- Buoyancy-driven power generation device and its power generation method therfor23 Jul 2026US 2026/0210326 A1
- Force deflection arrangement2 Jul 2026US 2026/0185501 A1
- Floating Ball Power Generation System25 Jun 2026US 2026/0177028 A1
- Communicating fluid vessel engine systems2 Apr 2026US 2026/0092596 A1
- Water-Based Renewable Electricity Generation System19 Mar 2026US 2026/0078733 A1
Most cited
By later US patents
- Energy storage and recovery64US 4,691,524 AShell Oil Company · 1987
- System and process for recovering energy from a compressed gas49US 6,964,165 B22005
- Ultimate energy wheel drum46US 4,326,132 A1982
- Air-liquid kinetic sculpture apparatus45US 4,939,859 A1990
- Gravity-actuated fluid displacement power generator44US 3,934,964 A1976