F02D 17/00
Controlling engines by cutting out individual cylinders
Official title: Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling (controlling or rendering inoperative by varying inlet or exhaust valve operating characteristics F02D13/00)
F02D17/00 (Controlling engines by cutting out individual cylinders) appears on 1,566 US grants and 1,194 published applications in this corpus.
Search patents in F02D- Granted patents
- 1,566
- Published applications
- 1,194
- Assignees
- 335
- Inventors
- 2,599
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 13 | 0 |
| 1978 | 30 | 0 |
| 1979 | 19 | 0 |
| 1980 | 28 | 0 |
| 1981 | 31 | 0 |
| 1982 | 25 | 0 |
| 1983 | 32 | 0 |
| 1984 | 36 | 0 |
| 1985 | 24 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 10 | 0 |
| 1989 | 13 | 0 |
| 1990 | 14 | 0 |
| 1991 | 14 | 0 |
| 1992 | 19 | 0 |
| 1993 | 13 | 0 |
| 1994 | 8 | 0 |
| 1995 | 8 | 0 |
| 1996 | 16 | 0 |
| 1997 | 13 | 0 |
| 1998 | 20 | 0 |
| 1999 | 10 | 0 |
| 2000 | 20 | 0 |
| 2001 | 17 | 5 |
| 2002 | 30 | 30 |
| 2003 | 20 | 15 |
| 2004 | 31 | 35 |
| 2005 | 29 | 39 |
| 2006 | 49 | 37 |
| 2007 | 42 | 53 |
| 2008 | 31 | 35 |
| 2009 | 26 | 33 |
| 2010 | 21 | 33 |
| 2011 | 12 | 38 |
| 2012 | 22 | 44 |
| 2013 | 37 | 59 |
| 2014 | 49 | 84 |
| 2015 | 67 | 97 |
| 2016 | 80 | 92 |
| 2017 | 80 | 93 |
| 2018 | 94 | 89 |
| 2019 | 105 | 75 |
| 2020 | 88 | 67 |
| 2021 | 60 | 39 |
| 2022 | 65 | 52 |
| 2023 | 39 | 18 |
| 2024 | 19 | 14 |
| 2025 | 10 | 11 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method of fuel injection mode transitions for an internal combustion engine during cylinder activation and deactivation8 Sep 2026US 12,729,657 B2GM Global Technology Operations LLC
- Control device for internal combustion engine25 Aug 2026US 12,716,393 B2Toyota Jidosha Kabushiki Kaisha
- Control method of air fuel ratio for hybrid vehicle and control device of air fuel ratio for hybrid vehicle28 Apr 2026US 12,612,032 B2Nissan Motor Co., Ltd.
- Intermittent energy/inertia mobile unit and movement method21 Apr 2026US 12,606,153 B2Dr. Nakamats Innovation Institute
- Polyhydroxyalkanoic acid compositions and methods for generating same10 Mar 2026US 12,571,012 B2Newlight Technologies, LLC
- Multi-fuel engines and controls using hydrogen fuel substitution10 Sep 2026US 2026/0266232 A1Cummins Inc.
- Screw actuated air shutoff valve10 Sep 2026US 2026/0266389 A1Amot Controls Corp.
- System and method of fuel injection mode transitions for an internal combustion engine during cylinder activation and deactivation20 Aug 2026US 2026/0243214 A1GM Global Technology Operations LLC
- Engine control system for vehicle13 Aug 2026US 2026/0235085 A1Cummins Power Generation Inc.
- Carbon monoxide detecting system for internal combustion engine-based machines23 Jul 2026US 2026/0210305 A1Generac Power Systems, Inc.
Most cited
By later US patents
- Internal combustion engine control for improved fuel efficiency214US 8,099,224 B2Tula Technology, Inc. · 2012
- Engine system and method accounting for engine misfire172US 7,086,386 B2Ford Global Technologies, LLC · 2006
- Method and system for output control of internal combustion engine170US 4,489,695 ANippon Soken, Inc. · 1984
- Engine with cylinder deactivation168US 6,023,929 AFord Global Technologies, LLC · 2000
- Engine operation using fully flexible valve and injection events156US 5,117,790 ACaterpillar Inc. · 1992