F02D 13/0215
Changing the valve timing only
Official title: {changing the valve timing only}
F02D13/0215 (Changing the valve timing only) appears on 1,316 US grants and 1,187 published applications in this corpus.
Search patents in F02D- Granted patents
- 1,316
- Published applications
- 1,187
- Assignees
- 199
- Inventors
- 2,033
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 9 | 0 |
| 1997 | 20 | 0 |
| 1998 | 16 | 0 |
| 1999 | 12 | 0 |
| 2000 | 9 | 0 |
| 2001 | 54 | 23 |
| 2002 | 44 | 50 |
| 2003 | 51 | 39 |
| 2004 | 45 | 45 |
| 2005 | 40 | 51 |
| 2006 | 50 | 53 |
| 2007 | 49 | 39 |
| 2008 | 45 | 43 |
| 2009 | 27 | 72 |
| 2010 | 53 | 50 |
| 2011 | 32 | 42 |
| 2012 | 44 | 43 |
| 2013 | 41 | 46 |
| 2014 | 42 | 73 |
| 2015 | 54 | 65 |
| 2016 | 67 | 47 |
| 2017 | 69 | 90 |
| 2018 | 69 | 72 |
| 2019 | 73 | 66 |
| 2020 | 76 | 41 |
| 2021 | 57 | 37 |
| 2022 | 38 | 41 |
| 2023 | 39 | 29 |
| 2024 | 28 | 15 |
| 2025 | 12 | 10 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Internal combustion engine12 May 2026US 12,624,669 B2Innio Jenbacher GmbH & Co OG
- Systems and methods for exhaust gas composition management during stochastic pre-ignition mitigation21 Apr 2026US 12,607,149 B2GM Global Technology Operations LLC
- Hydraulic control valve and method of controlling a hybrid cam phaser30 Jul 2026US 2026/0218632 A1
- 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
- Method for starting an internal combustion engine comprising a camshaft associated with an electric variable valve timing device29 Jan 2026US 2026/0028940 A1Schaeffler Technologies AG & Co. KG
- Controller for internal combustion engine15 Jan 2026US 2026/0015967 A1Toyota Jidosha Kabushiki Kaisha
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