F01L 9/22
Actuated by rotary motors
Official title: actuated by rotary motors
F01L9/22 (Actuated by rotary motors) appears on 67 US grants and 68 published applications in this corpus.
Search patents in F01L- Granted patents
- 67
- Published applications
- 68
- Assignees
- 33
- Inventors
- 116
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 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 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 5 |
| 2005 | 0 | 4 |
| 2006 | 9 | 4 |
| 2007 | 5 | 9 |
| 2008 | 5 | 4 |
| 2009 | 3 | 9 |
| 2010 | 5 | 2 |
| 2011 | 2 | 0 |
| 2012 | 2 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 3 |
| 2016 | 1 | 1 |
| 2017 | 3 | 2 |
| 2018 | 2 | 1 |
| 2019 | 1 | 4 |
| 2020 | 2 | 3 |
| 2021 | 2 | 4 |
| 2022 | 6 | 5 |
| 2023 | 4 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Carrier-less spring loaded planetary gearset used with eVCT8 Sep 2026US 12,729,635 B2BorgWarner Inc.
- Variable camshaft timing sun gear cushion ring23 Apr 2024US 11,965,439 B1BorgWarner Inc.
- Electrically-actuated camshaft phaser with backlash reduction26 Dec 2023US 11,852,053 B2BorgWarner Inc.
- Actuator with open-loop control direct drive26 Dec 2023US 11,852,055 B2Mmt SA
- Engine valve actuation17 Oct 2023US 11,788,442 B2Jaguar Land Rover Limited
- Carrier-less spring loaded planetary gearset used with evct8 Oct 2026US 2026/0309063 A1BorgWarner Inc.
- Carrier-less spring loaded planetary gearset used with evct6 Aug 2026US 2026/0226852 A1BorgWarner Inc.
- Variable camshaft timing sun gear cushion ring18 Apr 2024US 2024/0125255 A1BorgWarner Inc.
- Engine valve actuation8 Dec 2022US 2022/0389845 A1Jaguar Land Rover Limited
- Electrically-actuated camshaft phaser with backlash reduction24 Nov 2022US 2022/0372896 A1BorgWarner Inc.
Most cited
By later US patents
- Method and apparatus for electrically driving engine valves95US 5,327,856 AGeneral Motors Corporation · 1994
- Electromechanical valve drive incorporating a nonlinear mechanical transformer51US 6,755,166 B2Massachusetts Institute of Technology · 2004
- Internal combustion engine intake and exhaust valve control apparatus46US 4,976,227 A1990
- Method and apparatus for electrically driving engine valves31US 5,598,814 AGeneral Motors Corporation · 1997
- Engine valve actuation control system30US 5,873,335 ASiemens Automotive Corporation · 1999