F01L 1/20
Adjusting or compensating clearance
F01L1/20 (Adjusting or compensating clearance) appears on 1,781 US grants and 1,441 published applications in this corpus.
Search patents in F01L- Granted patents
- 1,781
- Published applications
- 1,441
- Assignees
- 330
- Inventors
- 2,230
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 12 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 17 | 0 |
| 1984 | 25 | 0 |
| 1985 | 25 | 0 |
| 1986 | 22 | 0 |
| 1987 | 33 | 0 |
| 1988 | 25 | 0 |
| 1989 | 33 | 0 |
| 1990 | 14 | 0 |
| 1991 | 17 | 0 |
| 1992 | 22 | 0 |
| 1993 | 20 | 0 |
| 1994 | 23 | 0 |
| 1995 | 17 | 0 |
| 1996 | 16 | 0 |
| 1997 | 31 | 0 |
| 1998 | 23 | 0 |
| 1999 | 37 | 0 |
| 2000 | 23 | 0 |
| 2001 | 24 | 14 |
| 2002 | 33 | 35 |
| 2003 | 51 | 36 |
| 2004 | 26 | 38 |
| 2005 | 34 | 57 |
| 2006 | 60 | 72 |
| 2007 | 51 | 79 |
| 2008 | 54 | 70 |
| 2009 | 43 | 99 |
| 2010 | 51 | 68 |
| 2011 | 61 | 66 |
| 2012 | 61 | 37 |
| 2013 | 45 | 40 |
| 2014 | 51 | 45 |
| 2015 | 41 | 48 |
| 2016 | 40 | 93 |
| 2017 | 64 | 96 |
| 2018 | 78 | 91 |
| 2019 | 97 | 81 |
| 2020 | 107 | 83 |
| 2021 | 73 | 56 |
| 2022 | 55 | 40 |
| 2023 | 36 | 29 |
| 2024 | 38 | 34 |
| 2025 | 27 | 25 |
| 2026 | 12 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Variable displacement valvetrain systems with rocker shaft porting and insert sleeves for engine cylinder deactivation22 Sep 2026US 12,742,403 B2GM Global Technology Operations LLC
- Hydraulic capsule for variable valve actuation4 Aug 2026US 12,698,732 B2Eaton Intelligent Power Limited
- Compliance spring mounting method and assembly26 May 2026US 12,637,965 B2Eaton Intelligent Power Limited
- Self-contained compression brake control module for integrated rocker arm engine braking and methods28 Apr 2026US 12,612,869 B2Pacbrake Company
- Rocker arm assembly7 Apr 2026US 12,595,753 B2Eaton Intelligent Power Limited
- Engine gear mesh backlash optimization1 Oct 2026US 2026/0298115 A1Deere & Company
- Valve operating system17 Sep 2026US 2026/0275886 A1Isuzu Motors Limited
- Roller hydraulic valve lifter bearing10 Sep 2026US 2026/0266204 A1Roller Bearing Company of America, Inc.
- Variable valve timing mechanism23 Jul 2026US 2026/0210276 A1Subaru Corporation
- Oil pan for internal combustion engine9 Jul 2026US 2026/0194004 A1Arctic Cat Inc.
Most cited
By later US patents
- Marine hulls and drives97US 7,984,684 B22011
- Engine valve control mechanism88US 4,203,397 AEaton Corporation · 1980
- Internal combustion engines with combined cam and electro-hydraulic engine valve control86US 5,680,841 ADiesel Engine Retarders, Inc. · 1997
- System and method for controlling the amount of lost motion between an engine valve and a valve actuation means83US 5,829,397 ADiesel Engine Retarders, Inc. · 1998
- Arrangement for electromagnetically operated actuators68US 4,515,343 AFev Forschungsgesellschaft fur Energietechnik und ver Brennungsmotoren mbH · 1985