F02G 3/02
Combustion-product positive-displacement engine plants: with reciprocating-piston engines
Official title: with reciprocating-piston engines
F02G3/02 (Combustion-product positive-displacement engine plants: with reciprocating-piston engines) appears on 120 US grants and 52 published applications in this corpus.
Search patents in F02G- Granted patents
- 120
- Published applications
- 52
- Assignees
- 34
- Inventors
- 114
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 8 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 0 |
| 2002 | 7 | 4 |
| 2003 | 4 | 4 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 4 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 4 |
| 2013 | 1 | 8 |
| 2014 | 4 | 2 |
| 2015 | 5 | 5 |
| 2016 | 3 | 3 |
| 2017 | 3 | 1 |
| 2018 | 5 | 6 |
| 2019 | 1 | 2 |
| 2020 | 4 | 1 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Multifuel closed-loop thermal cycle piston engine, system and method4 Mar 2025US 12,241,432 B2Engine Development Corp, LLC
- Two-stage combustor16 Aug 2022US 11,415,315 B1Precision Combustion, Inc.
- Method for controlling an internal combustion engine system12 Oct 2021US 11,143,119 B2Volvo Truck Corporation
- Regenerative cooling system27 Apr 2021US 10,989,142 B2
- Internal combustion engine system and an exhaust treatment unit for such a system15 Sep 2020US 10,774,712 B2Volvo Truck Corporation
- Multifuel closed-loop thermal cycle piston engine, system and method5 Jun 2025US 2025/0179967 A1Engine Development Corp, LLC
- Multifuel closed-loop thermal cycle piston engine, system and method9 May 2024US 2024/0151193 A1Engine Development Corp, LLC
- A method for controlling an internal combustion engine system23 Jul 2020US 2020/0232397 A1Volvo Truck Corporation
- An alternate procedure for operating an ic engine8 Aug 2019US 2019/0242293 A1
- Hybrid energy system3 Jan 2019US 2019/0003341 A1Apollo Hybrid, Inc.
Most cited
By later US patents
- Quasi-isothermal brayton cycle engine55US 6,886,326 B2The Texas A&M University System · 2005
- Auxiliary power unit51US 6,536,207 B1New Power Concepts LLC · 2003
- Multi-staged internal combustion engine49US 4,783,966 A1988
- Dual-cylinder expander engine and combustion method with two expansion strokes per cycle47US 6,202,416 B1The United States of America as represented by the Administrator of the U. S. Environmental Protection Agency · 2001
- Method of operating a combustion piston engine with external combustion46US 3,932,987 A1976