F02G 1/047
By varying the heating or cooling
Official title: by varying the heating or cooling
F02G1/047 (By varying the heating or cooling) appears on 50 US grants and 47 published applications in this corpus.
Search patents in F02G- Granted patents
- 50
- Published applications
- 47
- Assignees
- 26
- Inventors
- 93
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 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 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 3 |
| 2011 | 0 | 4 |
| 2012 | 2 | 0 |
| 2013 | 2 | 3 |
| 2014 | 1 | 2 |
| 2015 | 3 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 3 |
| 2018 | 0 | 1 |
| 2019 | 2 | 1 |
| 2020 | 6 | 11 |
| 2021 | 8 | 4 |
| 2022 | 4 | 3 |
| 2023 | 3 | 2 |
| 2024 | 4 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Stirling engine29 Jul 2025US 12,372,043 B2Yanmar Holdings Co., Ltd.
- Engine apparatus and method for operation29 Oct 2024US 12,129,812 B2Hyliion Holdings Corp.
- Near isothermal machine10 Sep 2024US 12,085,041 B2Isothermal Limited
- Constant density heat exchanger and system for energy conversion7 May 2024US 11,976,610 B2Hyliion Holdings Corp.
- Monolithic heat-exchanger bodies30 Jan 2024US 11,885,279 B2Hyliion Holdings Corp.
- Stirling engine6 Feb 2025US 2025/0043747 A1Yanmar Holdings Co., Ltd.
- Monolithic heat-exchanger bodies16 May 2024US 2024/0159201 A1Hyliion Holdings Corp.
- Near isothermal machine28 Mar 2024US 2024/0102430 A1Isothermal Limited
- Constant density heat exchanger and system for energy conversion20 Jul 2023US 2023/0228229 A1General Electric Company
- Energy conversion apparatus19 Jan 2023US 2023/0019495 A1General Electric Company
Most cited
By later US patents
- Air fuel control system for Stirling engine33US 4,231,222 AFord Motor Company · 1980
- Temperature control system for stirling engine31US 4,768,341 AAisin Seiki Kabushiki Kaisha · 1988
- Fuel-air regulating system for hot gas engines28US 3,956,892 AForenade Fabriksverken · 1976
- System for supplying fuel and combustion air to an external combustion engine25US 4,067,191 AForenade Fabriksverken · 1978
- Feedback air-fuel control system for Stirling engines25US 5,065,579 AGas Research Institute · 1991