F02D 13/0226
Changing valve lift or valve lift and timing
Official title: {changing valve lift or valve lift and timing}
F02D13/0226 (Changing valve lift or valve lift and timing) appears on 459 US grants and 460 published applications in this corpus.
Search patents in F02D- Granted patents
- 459
- Published applications
- 460
- Assignees
- 102
- Inventors
- 823
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 3 |
| 2002 | 11 | 18 |
| 2003 | 11 | 19 |
| 2004 | 16 | 21 |
| 2005 | 19 | 36 |
| 2006 | 31 | 40 |
| 2007 | 30 | 39 |
| 2008 | 32 | 25 |
| 2009 | 19 | 37 |
| 2010 | 26 | 27 |
| 2011 | 15 | 21 |
| 2012 | 23 | 16 |
| 2013 | 17 | 13 |
| 2014 | 13 | 10 |
| 2015 | 17 | 15 |
| 2016 | 14 | 21 |
| 2017 | 12 | 6 |
| 2018 | 13 | 23 |
| 2019 | 18 | 15 |
| 2020 | 19 | 17 |
| 2021 | 16 | 14 |
| 2022 | 11 | 9 |
| 2023 | 11 | 7 |
| 2024 | 6 | 3 |
| 2025 | 7 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Engine control system for intake valve opening timing during cold start11 Aug 2026US 12,704,099 B2Cummins Power Generation Inc.
- Oil pan for internal combustion engine3 Mar 2026US 12,565,852 B2Arctic Cat Inc.
- Variable valve device9 Sep 2025US 12,410,734 B2Suzuki Motor Corporation
- Self-charged four stroke one-cycle combustion cylinder for internal combustion engine29 Jul 2025US 12,372,016 B1
- Variable valve device13 May 2025US 12,297,756 B2Suzuki Motor Corporation
- Oil pan for internal combustion engine9 Jul 2026US 2026/0194004 A1Arctic Cat Inc.
- Engine control system for intake valve opening timing during cold start18 Sep 2025US 2025/0290459 A1Cummins Power Generation Inc.
- Variable valve device3 Apr 2025US 2025/0109698 A1Suzuki Motor Corporation
- Variable valve device3 Apr 2025US 2025/0109700 A1Suzuki Motor Corporation
- Multi-cylinder internal combustion engine, with cylinders equipped with intake valve variable actuation systems having hydraulic circuits which cross each other16 Jan 2025US 2025/0020072 A1C. R. F. Societa Consortile per Azioni
Most cited
By later US patents
- System for controlling a valve mechanism for an internal combustion engine104US 5,398,502 AFuji Jukogyo Kabushiki Kaisha · 1995
- Transitions among operating modes in an engine with a hybrid valvetrain65US 6,484,677 B2Ford Global Technologies, LLC · 2002
- Lean-burn variable compression ratio engine59US 6,125,801 A2000
- Method for improved internal exhaust gas recirculation in an internal combustion engine58US 4,722,315 AM. A. N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft · 1988
- Internal combustion engine control system57US 6,055,948 AHitachi, Ltd. · 2000