F02D 25/00
Controlling two or more co-operating engines
F02D25/00 (Controlling two or more co-operating engines) appears on 168 US grants and 153 published applications in this corpus.
Search patents in F02D- Granted patents
- 168
- Published applications
- 153
- Assignees
- 104
- Inventors
- 321
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 5 |
| 2003 | 2 | 2 |
| 2004 | 2 | 2 |
| 2005 | 5 | 3 |
| 2006 | 0 | 5 |
| 2007 | 2 | 4 |
| 2008 | 1 | 6 |
| 2009 | 5 | 3 |
| 2010 | 5 | 7 |
| 2011 | 3 | 3 |
| 2012 | 5 | 3 |
| 2013 | 4 | 11 |
| 2014 | 9 | 9 |
| 2015 | 7 | 14 |
| 2016 | 8 | 5 |
| 2017 | 8 | 8 |
| 2018 | 9 | 12 |
| 2019 | 11 | 10 |
| 2020 | 8 | 7 |
| 2021 | 8 | 10 |
| 2022 | 9 | 9 |
| 2023 | 7 | 7 |
| 2024 | 9 | 4 |
| 2025 | 4 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Motor angular position control25 Aug 2026US 12,719,392 B2Schlumberger Technology Corporation
- Mobile electric fracking trailer power supply system14 Oct 2025US 12,442,338 B2Electronic Power Design, Inc.
- Multifuel automotive engine-derived systems for clean grid load balancing and non-grid electricity applications19 Aug 2025US 12,392,299 B2
- Container for a generator set1 Jul 2025US 12,344,463 B2Cummins Power Generation Inc.
- Systems and methods of controlling load share and speed of engines in multiple-engine propulsion systems4 Mar 2025US 12,241,426 B2General Electric Company
- Unit management system, electric power generating unit, management support equipment, and unit management method19 Mar 2026US 2026/0078708 A1Kawasaki Motors, Ltd.
- Multifuel Automotive Engine-Derived Systems for Clean Grid Load Balancing and Non-Grid Electricity Applications13 Nov 2025US 2025/0347256 A1
- Container for a generator set16 Oct 2025US 2025/0320057 A1Cummins Power Generation Inc.
- Motor angular position control28 Aug 2025US 2025/0274064 A1Schlumberger Technology Corporation
- Method and system for controlling a free piston mover5 Dec 2024US 2024/0405707 A1Libertine FPE Ltd
Most cited
By later US patents
- Control of multiple engines using one or more parameters associated with the multiple engines157US 10,927,774 B2Caterpillar Inc. · 2021
- Twin engine power uniter121US 10,435,026 B2Oshkosh Corporation · 2019
- Locomotive engine start method57US 7,309,929 B2Railpower Technologies Corp. · 2007
- Power packaging with railcars51US 8,294,285 B2F3 & I2, LLC · 2012
- Multiple prime power source locomotive control38US 7,518,254 B2Railpower Technologies Corp. · 2009