F01L 2001/34426
Oil control valves
Official title: {Oil control valves}
F01L2001/34426 (Oil control valves) appears on 1,058 US grants and 1,057 published applications in this corpus.
Search patents in F01L- Granted patents
- 1,058
- Published applications
- 1,057
- Assignees
- 163
- Inventors
- 1,215
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 23 | 10 |
| 2002 | 28 | 35 |
| 2003 | 32 | 40 |
| 2004 | 45 | 37 |
| 2005 | 43 | 47 |
| 2006 | 30 | 29 |
| 2007 | 24 | 41 |
| 2008 | 29 | 57 |
| 2009 | 23 | 49 |
| 2010 | 30 | 55 |
| 2011 | 32 | 47 |
| 2012 | 47 | 41 |
| 2013 | 40 | 56 |
| 2014 | 63 | 40 |
| 2015 | 55 | 52 |
| 2016 | 49 | 69 |
| 2017 | 53 | 82 |
| 2018 | 71 | 67 |
| 2019 | 75 | 54 |
| 2020 | 52 | 50 |
| 2021 | 54 | 35 |
| 2022 | 29 | 27 |
| 2023 | 24 | 18 |
| 2024 | 25 | 8 |
| 2025 | 10 | 6 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control device for hydraulic control valve28 Apr 2026US 12,612,912 B2Hitachi Astemo, Ltd.
- Variable valve timing system24 Feb 2026US 12,560,109 B2Suzuki Motor Corporation
- Oil passage control valve and valve timing varying device10 Feb 2026US 12,546,239 B2Mikuni Corporation
- Camshaft adjustment system for flexibly starting an internal combustion engine, and method for operating a drivetrain27 Jan 2026US 12,535,019 B2Schaeffler Technologies AG & Co. KG
- Control valve assembly of a variable cam timing phaser6 Jan 2026US 12,516,615 B2Borg-Warner Corporation
- Variable cam timing phaser8 Oct 2026US 2026/0309061 A1
- Variable cam timing phaser and method of assembling the same8 Oct 2026US 2026/0309062 A1
- Hydraulic control valve and method of controlling a hybrid cam phaser30 Jul 2026US 2026/0218632 A1
- Variable valve timing mechanism23 Jul 2026US 2026/0210276 A1Subaru Corporation
- Oil supply apparatus for engine25 Jun 2026US 2026/0176989 A1Mazda Motor Corporation
Most cited
By later US patents
- Device for adjusting an angular phase difference between two elements100US 4,858,572 AAisin Seiki Kabushiki Kaisha · 1989
- Variable camshaft timing for internal combustion engine95US 5,107,804 ABorg-Warner Automotive Transmission & Engine Components Corporation · 1992
- Variable camshaft timing for internal combustion engine93US 5,002,023 ABorg-Warner Automotive, Inc. · 1991
- Dual-acting apparatus for variable valve timing and the like87US 5,417,186 AClemson University · 1995
- Variable valve timing control system80US 6,330,870 B1Denso Corporation · 2001