F02G 2270/90
Valves
F02G2270/90 (Valves) appears on 20 US grants and 18 published applications in this corpus.
Search patents in F02G- Granted patents
- 20
- Published applications
- 18
- Assignees
- 14
- Inventors
- 39
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 3 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 3 |
| 2018 | 4 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 2 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thermo-magnetic motor10 Mar 2026US 12,571,357 B1
- Multifuel closed-loop thermal cycle piston engine, system and method4 Mar 2025US 12,241,432 B2Engine Development Corp, LLC
- Plant for producing mechanical energy from a carrier fluid under cryogenic conditions1 Oct 2024US 12,104,507 B2Sylans Sagl
- Plant for producing mechanical energy from a carrier fluid under cryogenic conditions10 Sep 2024US 12,084,991 B2Sylans Sagl
- External heat source engine with slide valves17 May 2022US 11,333,047 B2H2P Systems
- Multifuel closed-loop thermal cycle piston engine, system and method9 May 2024US 2024/0151193 A1Engine Development Corp, LLC
- Plant for producing mechanical energy from a carrier fluid under cryogenic conditions4 Jan 2024US 2024/0003271 A1Sylans Sagl
- Plant for producing mechanical energy from a carrier fluid under cryogenic conditions21 Sep 2023US 2023/0296035 A1Sylans Sagl
- Control and configuration of software-defined machines24 Feb 2022US 2022/0056868 A1Energy Internet Corporation
- External heat source engine with slide valves30 Jul 2020US 2020/0240297 A1H2P Systems
Most cited
By later US patents
- Flow diode and method for controlling fluid flow origin of the invention14US 9,169,855 B1The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2015
- Leakage gas recirculation system for use in stirling engine7US 4,197,707 ANippon Piston Ring Co., Ltd. · 1980
- High temperature engine and seal5US 4,574,590 A1986
- Valved stirling engine with improved efficiency5US 9,109,534 B22015
- High temperature engine and seal4US 4,485,628 A1984