F01L 13/08
Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or
Official title: for decompression, e.g. during starting; for changing compression ratio
F01L13/08 (Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or) appears on 256 US grants and 179 published applications in this corpus.
Search patents in F01L- Granted patents
- 256
- Published applications
- 179
- Assignees
- 94
- Inventors
- 522
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 11 | 13 |
| 2003 | 8 | 10 |
| 2004 | 13 | 11 |
| 2005 | 14 | 9 |
| 2006 | 4 | 11 |
| 2007 | 9 | 5 |
| 2008 | 2 | 7 |
| 2009 | 6 | 8 |
| 2010 | 5 | 5 |
| 2011 | 8 | 3 |
| 2012 | 4 | 5 |
| 2013 | 2 | 3 |
| 2014 | 5 | 10 |
| 2015 | 5 | 7 |
| 2016 | 5 | 12 |
| 2017 | 6 | 8 |
| 2018 | 5 | 9 |
| 2019 | 7 | 8 |
| 2020 | 13 | 5 |
| 2021 | 9 | 9 |
| 2022 | 7 | 6 |
| 2023 | 6 | 2 |
| 2024 | 6 | 7 |
| 2025 | 7 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Two-wheeled vehicle9 Jun 2026US 12,649,536 B2Indian Motorcycle International, LLC
- Castellation assembly, rocker arm, and actuator assembly therefor23 Dec 2025US 12,503,965 B2Eaton Intelligent Power Limited
- Castellation assembly, rocker arm, and actuator assembly therefor18 Nov 2025US 12,473,847 B2Eaton Intelligent Power Limited
- Apparatuses, methods, and systems including engine high-speed starting capability21 Oct 2025US 12,448,929 B2Cummins Inc.
- Decompression device and engine14 Oct 2025US 12,442,319 B2Suzuki Motor Corporation
- Engine1 Jan 2026US 2026/0002454 A1Kubota Corporation
- Rocker arm assembly with rotation-locking mechanism29 May 2025US 2025/0172074 A1Eaton Intelligent Power Limited
- System and method for actuating engine valves including a recompression relief valve event10 Apr 2025US 2025/0116213 A1Jacobs Vehicle Systems, Inc.
- Apparatuses, methods, and systems including engine high-speed starting capability3 Apr 2025US 2025/0109716 A1Cummins Inc.
- Castellation assembly, rocker arm, and actuator assembly therefor19 Dec 2024US 2024/0418108 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Combination starter-generator80US 6,821,223 B2Delphi Technologies, Inc. · 2004
- Four-cycle internal combustion engines with two-cycle compression release braking69US 5,537,976 ADiesel Engine Retarders, Inc. · 1996
- Method of operating supercharged diesel engine with modified valve lift and bypassed intake air53US 4,561,253 ASociete d'Etudes de Machines Thermiques S.E.M.T. · 1985
- Piston-type internal combustion engine52US 4,033,304 A1977
- Variable lost motion valve actuator and method48US 6,085,705 ADiesel Engine Retarders, Inc. · 2000