F02G 2270/10
Rotary pistons
F02G2270/10 (Rotary pistons) appears on 22 US grants and 26 published applications in this corpus.
Search patents in F02G- Granted patents
- 22
- Published applications
- 26
- Assignees
- 9
- Inventors
- 43
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 3 |
| 2010 | 2 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 2 | 3 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 2 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 3 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Alternative heat source for an engine19 Aug 2025US 12,392,279 B1
- Stirling-cycle cooling device with monobloc support18 Oct 2022US 11,473,815 B2Thales
- Variable volume chamber device28 Jul 2020US 10,724,428 B2Quest Engines, LLC
- Rotary stirling-cycle apparatus and method thereof3 Sep 2019US 10,400,708 B2University of Northumbria
- Vane-rotor type Stirling engine16 Jan 2018US 9,869,273 B2Hyundai Motor Company
- Volumetric heat engine with piston-pendulum30 Jul 2026US 2026/0218647 A1
- Turbostirling Engine17 Jun 2021US 2021/0180474 A1
- Stirling-cycle cooling device with external rotor motor2 Jul 2020US 2020/0208883 A1
- Stirling-cycle cooling device with monobloc support2 Jul 2020US 2020/0208884 A1Thales
- Double-acting stirling engines with optimal parameters and waveforms14 May 2020US 2020/0149494 A1
Most cited
By later US patents
- High efficiency positive displacement thermodynamic system67US 8,424,284 B22013
- Power plant with heat transformation27US 7,823,381 B2Maschinewerk Misselhorn MWM GmbH · 2010
- Stirling cycle refrigerator or engine employing the rotary wankel mechanism18US 6,109,040 AGeneral Pneumatics Corporation · 2000
- Epitrochoidal Stirling type engine13US 4,179,890 A1979
- Volume expansion rotary piston machine10US 8,210,151 B22012