F01L 1/34409
By torque-responsive means
Official title: {by torque-responsive means}
F01L1/34409 (By torque-responsive means) appears on 253 US grants and 215 published applications in this corpus.
Search patents in F01L- Granted patents
- 253
- Published applications
- 215
- Assignees
- 57
- Inventors
- 287
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 11 | 0 |
| 1993 | 10 | 0 |
| 1994 | 8 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 2 |
| 2003 | 4 | 14 |
| 2004 | 14 | 8 |
| 2005 | 11 | 13 |
| 2006 | 6 | 2 |
| 2007 | 5 | 11 |
| 2008 | 4 | 7 |
| 2009 | 5 | 7 |
| 2010 | 8 | 4 |
| 2011 | 4 | 1 |
| 2012 | 4 | 6 |
| 2013 | 4 | 6 |
| 2014 | 5 | 7 |
| 2015 | 9 | 11 |
| 2016 | 13 | 25 |
| 2017 | 21 | 29 |
| 2018 | 15 | 10 |
| 2019 | 20 | 22 |
| 2020 | 18 | 6 |
| 2021 | 15 | 11 |
| 2022 | 6 | 4 |
| 2023 | 6 | 2 |
| 2024 | 5 | 3 |
| 2025 | 3 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid control valve unit and valve timing change device9 Sep 2025US 12,410,733 B2Mikuni Corporation
- Mechanical cam phasing systems and methods6 May 2025US 12,291,983 B2HUSCO Automotive Holdings LLC
- Camshaft phaser having non-return valves1 Apr 2025US 12,264,603 B2Schaeffler Technologies AG & Co. KG
- Camshaft adjuster24 Sep 2024US 12,098,662 B2Schaeffler Technologies AG & Co. KG
- Bypass oil supply for an oil volume accumulator of a hydraulic camshaft phaser6 Aug 2024US 12,055,073 B2Schaeffler Technologies AG & Co. KG
- Hydraulic control valve and method of controlling a hybrid cam phaser30 Jul 2026US 2026/0218632 A1
- Camshaft phaser having non-return valves23 Jan 2025US 2025/0027432 A1Schaeffler Technologies AG & Co. KG
- Fluid control valve unit and valve timing change device28 Nov 2024US 2024/0392705 A1Mikuni Corporation
- Bypass oil supply for an oil volume accumulator of a hydraulic camshaft phaser25 Jan 2024US 2024/0026804 A1Schaeffler Technologies AG & Co. KG
- Mechanical Cam Phasing Systems and Methods18 Jan 2024US 2024/0018886 A1HUSCO Automotive Holdings LLC
Most cited
By later US patents
- 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
- Self-calibrating variable camshaft timing system70US 5,289,805 ABorg-Warner Automotive Transmission & Engine Components Corporation · 1994
- VCT system having robust closed loop control employing dual loop approach having hydraulic pilot stage with a PWM solenoid69US 5,184,578 ABorg-Warner Automotive Transmission & Engine Components Corporation · 1993
- Differential pressure control system for variable camshaft timing system60US 5,172,659 ABorg-Warner Automotive Transmission & Engine Components Corporation · 1992