F02G 2280/10
Linear generators
F02G2280/10 (Linear generators) appears on 80 US grants and 91 published applications in this corpus.
Search patents in F02G- Granted patents
- 80
- Published applications
- 91
- Assignees
- 38
- Inventors
- 124
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 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 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 3 |
| 2006 | 4 | 4 |
| 2007 | 1 | 4 |
| 2008 | 1 | 7 |
| 2009 | 4 | 6 |
| 2010 | 7 | 7 |
| 2011 | 2 | 6 |
| 2012 | 3 | 1 |
| 2013 | 4 | 5 |
| 2014 | 6 | 4 |
| 2015 | 2 | 2 |
| 2016 | 4 | 6 |
| 2017 | 1 | 0 |
| 2018 | 4 | 4 |
| 2019 | 1 | 3 |
| 2020 | 6 | 9 |
| 2021 | 5 | 3 |
| 2022 | 5 | 5 |
| 2023 | 3 | 3 |
| 2024 | 4 | 3 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Free-piston Stirling engine7 Oct 2025US 12,435,911 B2Twinbird Corporation
- System and apparatus for energy conversion18 Feb 2025US 12,228,094 B2Hyliion Holdings Corp.
- Engine apparatus and method for operation29 Oct 2024US 12,129,812 B2Hyliion Holdings Corp.
- Alpha Stirling engine27 Aug 2024US 12,071,910 B2EnergyIntel Services Ltd.
- Constant density heat exchanger and system for energy conversion7 May 2024US 11,976,610 B2Hyliion Holdings Corp.
- Hot-gas free-piston stirling engine with efficient hot air inlet2 Apr 2026US 2026/0092576 A1Exowatt, Inc.
- An alpha type stirling engine6 Feb 2025US 2025/0043746 A1EnergyIntel Services Ltd.
- Free-piston stirling engine14 Nov 2024US 2024/0376850 A1Twinbird Corporation
- Stirling engine with near isothermal working spaces15 Aug 2024US 2024/0271835 A1
- Monolithic heat-exchanger bodies16 May 2024US 2024/0159201 A1Hyliion Holdings Corp.
Most cited
By later US patents
- Double acting thermodynamically resonant free-piston multicylinder stirling system and method78US 7,134,279 B2Infinia Corporation · 2006
- Convertor for thermal energy into electrical energy using Stirling motor and integral electrical generator74US 4,511,805 ABertin & Cie · 1985
- Stirling cycle cryogenic cooler63US 4,389,849 A1983
- Thermomechanical electrical generator/power supply for a downhole tool32US 4,805,407 AHalliburton Company · 1989
- System and method for electrically-coupled thermal cycle25US 8,720,198 B2Altor Limited LC · 2014