F01L 1/00
Valve-gear or valve arrangements
Official title: Valve-gear or valve arrangements, e.g. lift-valve gear (lift-valve and valve-seat assemblies per se F01L3/00; slide-valve gear F01L5/00; actuated non-mechanically F01L9/00; valve arrangements in working piston or piston rod F01L11/00; modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations F01L13/00)
F01L1/00 (Valve-gear or valve arrangements) appears on 10,493 US grants and 8,355 published applications in this corpus.
Search patents in F01L- Granted patents
- 10,493
- Published applications
- 8,355
- Assignees
- 1,311
- Inventors
- 10,914
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 33 | 0 |
| 1977 | 15 | 0 |
| 1978 | 21 | 0 |
| 1979 | 20 | 0 |
| 1980 | 37 | 0 |
| 1981 | 30 | 0 |
| 1982 | 36 | 0 |
| 1983 | 42 | 0 |
| 1984 | 83 | 0 |
| 1985 | 102 | 0 |
| 1986 | 106 | 0 |
| 1987 | 115 | 0 |
| 1988 | 128 | 0 |
| 1989 | 160 | 0 |
| 1990 | 133 | 0 |
| 1991 | 157 | 0 |
| 1992 | 168 | 0 |
| 1993 | 173 | 0 |
| 1994 | 158 | 0 |
| 1995 | 121 | 0 |
| 1996 | 158 | 0 |
| 1997 | 186 | 0 |
| 1998 | 196 | 0 |
| 1999 | 197 | 0 |
| 2000 | 173 | 0 |
| 2001 | 301 | 112 |
| 2002 | 302 | 317 |
| 2003 | 323 | 331 |
| 2004 | 298 | 336 |
| 2005 | 305 | 446 |
| 2006 | 340 | 375 |
| 2007 | 331 | 439 |
| 2008 | 295 | 422 |
| 2009 | 228 | 474 |
| 2010 | 301 | 391 |
| 2011 | 313 | 347 |
| 2012 | 323 | 360 |
| 2013 | 335 | 386 |
| 2014 | 395 | 344 |
| 2015 | 374 | 390 |
| 2016 | 298 | 463 |
| 2017 | 360 | 510 |
| 2018 | 415 | 387 |
| 2019 | 444 | 365 |
| 2020 | 426 | 347 |
| 2021 | 308 | 242 |
| 2022 | 242 | 209 |
| 2023 | 155 | 115 |
| 2024 | 171 | 110 |
| 2025 | 113 | 85 |
| 2026 | 49 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01L 1/02Valve drive4,398
- F01L 1/34Valve-gear or valve arrangements: characterised by the provision of means for changing4,348
- F01L 1/12Transmitting gear between valve drive and valve3,634
- F01L 1/20Adjusting or compensating clearance1,781
- F01L 1/26Valve-gear or valve arrangements: characterised by the provision of two or more1,458
- F01L 1/46Component parts, details, or accessories, not provided for in preceding subgroups1,165
- F01L 1/36Peculiar to machines or engines of specific type other than four-stroke cycle159
- F01L 1/30Valve-gear or valve arrangements: characterised by the provision of positively opened and118
All 11 subgroupsShow fewer
Recent patents
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- Cylinder head cover, and method for installing a cylinder head cover8 Sep 2026US 12,729,634 B2thyssenkrupp AG
- Carrier-less spring loaded planetary gearset used with eVCT8 Sep 2026US 12,729,635 B2BorgWarner Inc.
- Valve bridge for a valve train of an internal combustion engine, especially of a motor vehicle, and internal combustion engine4 Aug 2026US 12,698,731 B2Daimler Truck AG
- Hydraulic capsule for variable valve actuation4 Aug 2026US 12,698,732 B2Eaton Intelligent Power Limited
- Camshaft8 Oct 2026US 2026/0309059 A1Subaru Corporation
- Vane seal spring8 Oct 2026US 2026/0309060 A1
- Variable cam timing phaser8 Oct 2026US 2026/0309061 A1
- Variable cam timing phaser and method of assembling the same8 Oct 2026US 2026/0309062 A1
- Carrier-less spring loaded planetary gearset used with evct8 Oct 2026US 2026/0309063 A1BorgWarner Inc.
Most cited
By later US patents
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- 6-cycle engine with regenerator168US 8,186,334 B22012
- Finger follower rocker arm with engine valve deactivator136US 5,544,626 AFord Motor Company · 1996
- Powertrain component with adherent film having a graded composition132US 5,249,554 AFord Motor Company · 1993
- System and method for engine fuel blend control110US 7,287,492 B2Ford Global Technologies, LLC · 2007