F02G 2275/40
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F02G2275/40 (Controls: for starting) appears on 54 US grants and 26 published applications in this corpus.
Search patents in F02G- Granted patents
- 54
- Published applications
- 26
- Assignees
- 21
- Inventors
- 78
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 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 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 3 | 9 |
| 2021 | 5 | 2 |
| 2022 | 4 | 5 |
| 2023 | 3 | 3 |
| 2024 | 4 | 2 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Direct current power plant8 Jul 2025US 12,352,230 B2DEKA Products Limited Partnership
- Direct current power plant7 Jan 2025US 12,188,441 B2DEKA Products Limited Partnership
- Engine apparatus and method for operation29 Oct 2024US 12,129,812 B2Hyliion Holdings Corp.
- 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.
- Monolithic heat-exchanger bodies16 May 2024US 2024/0159201 A1Hyliion Holdings Corp.
- Direct current power plant21 Mar 2024US 2024/0093663 A1DEKA Products Limited Partnership
- Direct current power plant7 Dec 2023US 2023/0392570 A1DEKA Products Limited Partnership
- 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
- Self-contained renewable energy system69US 4,776,171 APerry Oceanographics, Inc. · 1988
- Start-up and control method and apparatus for resonant free piston Stirling engine55US 4,434,617 AMechanical Technology Incorporated · 1984
- Magnoelectric resonance engine51US 5,329,768 A1994
- Radial hot gas engine37US 5,177,968 A1993
- Reducing the starting torque of double-acting Stirling engines30US 4,026,114 AFord Motor Company · 1977