F02D 2041/001
For engines with variable valve actuation
Official title: {for engines with variable valve actuation}
F02D2041/001 (For engines with variable valve actuation) appears on 2,803 US grants and 2,653 published applications in this corpus.
Search patents in F02D- Granted patents
- 2,803
- Published applications
- 2,653
- Assignees
- 288
- Inventors
- 3,706
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 14 | 0 |
| 1991 | 16 | 0 |
| 1992 | 12 | 0 |
| 1993 | 19 | 0 |
| 1994 | 10 | 0 |
| 1995 | 18 | 0 |
| 1996 | 18 | 0 |
| 1997 | 25 | 0 |
| 1998 | 23 | 0 |
| 1999 | 22 | 0 |
| 2000 | 28 | 0 |
| 2001 | 62 | 36 |
| 2002 | 79 | 89 |
| 2003 | 97 | 99 |
| 2004 | 101 | 99 |
| 2005 | 80 | 138 |
| 2006 | 148 | 134 |
| 2007 | 129 | 120 |
| 2008 | 97 | 114 |
| 2009 | 64 | 143 |
| 2010 | 100 | 101 |
| 2011 | 90 | 94 |
| 2012 | 95 | 90 |
| 2013 | 90 | 113 |
| 2014 | 84 | 122 |
| 2015 | 120 | 156 |
| 2016 | 129 | 167 |
| 2017 | 153 | 175 |
| 2018 | 174 | 174 |
| 2019 | 170 | 126 |
| 2020 | 162 | 127 |
| 2021 | 131 | 87 |
| 2022 | 93 | 68 |
| 2023 | 64 | 42 |
| 2024 | 44 | 17 |
| 2025 | 21 | 9 |
| 2026 | 6 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Varied intake valve operation for improved transient response in gaseous fuel engine22 Sep 2026US 12,742,427 B1Caterpillar Inc.
- Fuel agnostic compression ignition engine18 Aug 2026US 12,710,015 B2Climate Energy Investments, LLC
- Engine control system for intake valve opening timing during cold start11 Aug 2026US 12,704,099 B2Cummins Power Generation Inc.
- Engine shutoff profile for hybrid vehicle gasoline particulate filter regeneration30 Jun 2026US 12,669,095 B2Fca US LLC
- Systems and methods for exhaust gas composition management during stochastic pre-ignition mitigation21 Apr 2026US 12,607,149 B2GM Global Technology Operations LLC
- Controller for internal combustion engine1 Oct 2026US 2026/0298162 A1Toyota Jidosha Kabushiki Kaisha
- Varied intake valve operation for improved transient response in gaseous fuel engine24 Sep 2026US 2026/0286908 A1Caterpillar Inc.
- 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 device, vehicle, engine control program, and engine control method13 Aug 2026US 2026/0235087 A1Isuzu Motors Limited
- Deactivation mechanism and associated valve events for divided exhaust boost (deb) engine23 Jul 2026US 2026/0210303 A1Aramco Services Company
Most cited
By later US patents
- Skip-cycle strategies for four cycle engine202US 5,377,631 AFord Motor Company · 1995
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Vehicle braking control190US 7,930,087 B2Ford Global Technologies, LLC · 2011
- Engine operation using fully flexible valve and injection events156US 5,117,790 ACaterpillar Inc. · 1992
- System and method for servo control of nonlinear electromagnetic actuators139US 6,208,497 B1Venture Scientifics, LLC · 2001