F02D 13/0203
Variable control of intake and exhaust valves
Official title: {Variable control of intake and exhaust valves}
F02D13/0203 (Variable control of intake and exhaust valves) appears on 2,230 US grants and 2,044 published applications in this corpus.
Search patents in F02D- Granted patents
- 2,230
- Published applications
- 2,044
- Assignees
- 285
- Inventors
- 3,140
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 18 | 0 |
| 1991 | 16 | 0 |
| 1992 | 8 | 0 |
| 1993 | 11 | 0 |
| 1994 | 11 | 0 |
| 1995 | 11 | 0 |
| 1996 | 14 | 0 |
| 1997 | 24 | 0 |
| 1998 | 27 | 0 |
| 1999 | 18 | 0 |
| 2000 | 23 | 0 |
| 2001 | 64 | 33 |
| 2002 | 73 | 81 |
| 2003 | 79 | 64 |
| 2004 | 72 | 83 |
| 2005 | 72 | 109 |
| 2006 | 104 | 100 |
| 2007 | 96 | 94 |
| 2008 | 81 | 96 |
| 2009 | 47 | 102 |
| 2010 | 87 | 82 |
| 2011 | 65 | 69 |
| 2012 | 69 | 68 |
| 2013 | 66 | 72 |
| 2014 | 65 | 113 |
| 2015 | 85 | 106 |
| 2016 | 101 | 79 |
| 2017 | 103 | 143 |
| 2018 | 125 | 122 |
| 2019 | 122 | 109 |
| 2020 | 120 | 88 |
| 2021 | 108 | 75 |
| 2022 | 83 | 67 |
| 2023 | 65 | 45 |
| 2024 | 43 | 22 |
| 2025 | 25 | 14 |
| 2026 | 11 | 8 |
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.
- Systems and methods for combusting unconventional fuel chemistries in a diesel engine architecture7 Jul 2026US 12,674,409 B2Climate Energy Investments, LLC
- Controller for internal combustion engine30 Jun 2026US 12,669,079 B2Toyota Jidosha Kabushiki Kaisha
- Valve opening and closing timing control device2 Jun 2026US 12,644,399 B2Aisin Corporation
- Power unit12 May 2026US 12,624,666 B2Kawasaki Motors, Ltd.
- Varied intake valve operation for improved transient response in gaseous fuel engine24 Sep 2026US 2026/0286908 A1Caterpillar Inc.
- Hydraulic control valve and method of controlling a hybrid cam phaser30 Jul 2026US 2026/0218632 A1
- Oil pan for internal combustion engine9 Jul 2026US 2026/0194004 A1Arctic Cat Inc.
- Oil supply apparatus for engine25 Jun 2026US 2026/0176989 A1Mazda Motor Corporation
- Systems and methods for exhaust gas composition management during stochastic pre-ignition mitigation5 Mar 2026US 2026/0063082 A1GM Global Technology Operations LLC
Most cited
By later US patents
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Valve selection for an engine operating in a multi-stroke cylinder mode179US 7,063,062 B2Ford Global Technologies, LLC · 2006
- Programmed valve system for internal combustion engine169US 4,009,695 A1977
- System and method for engine starting160US 7,159,568 B1Ford Global Technologies, LLC · 2007
- Engine operation using fully flexible valve and injection events156US 5,117,790 ACaterpillar Inc. · 1992