F02G 1/0445
Engine plants with combined cycles
Official title: {Engine plants with combined cycles, e.g. Vuilleumier}
F02G1/0445 (Engine plants with combined cycles) appears on 136 US grants and 23 published applications in this corpus.
Search patents in F02G- Granted patents
- 136
- Published applications
- 23
- Assignees
- 55
- Inventors
- 171
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 9 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 15 | 2 |
| 2002 | 5 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 3 |
| 2019 | 0 | 1 |
| 2020 | 2 | 3 |
| 2021 | 1 | 0 |
| 2022 | 2 | 3 |
| 2023 | 0 | 2 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-temperature double-acting piston21 Jan 2025US 12,203,427 B2
- Stirling cycle machine1 Oct 2024US 12,104,552 B2DEKA Products Limited Partnership
- Rotary heat pump21 May 2024US 11,988,166 B2Maruko Keihoki Co., Ltd.
- Combined circulating system of micro gas turbine, transportation means and charging system2 Jan 2024US 11,859,494 B2Technologies' Xanadu of Resonatory-Solar-Systemed Co., Ltd.
- Centrally located linear actuators for driving displacers in a thermodynamic apparatus12 Jul 2022US 11,384,746 B2ThermoLift, Inc.
- Regenerator construction and structural design for enhanced performance in vuilleumier heat pumps16 Jul 2026US 2026/0201848 A1
- Stirling cycle machine23 Jan 2025US 2025/0027461 A1DEKA Products Limited Partnership
- Devices and methods for converting thermal, mechanical and/or electrical energy quantities9 May 2024US 2024/0151215 A1
- Rotary heat pump7 Sep 2023US 2023/0279824 A1Maruko Keihoki Co., Ltd.
- Piston a double effet multitemperature17 Aug 2023US 2023/0258145 A1
Most cited
By later US patents
- Micro miniature refrigerators142US 4,392,362 AThe Board of Trustees of the Leland Stanford Junior University · 1983
- Micromachined rate and acceleration sensor127US 5,241,861 ASundstrand Corporation · 1993
- Apparatus and process for pressure swing adsorption separation100US 4,801,308 A1989
- Method and apparatus for gas separation and synthesis77US 4,702,903 A1987
- Refrigerators56US 4,386,505 AThe Board of Trustees of the Leland Stanford Junior University · 1983