F01L 3/00
Lift-valve, i.e. cut-off apparatus with closure members having at least a component
Official title: Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
F01L3/00 (Lift-valve, i.e. cut-off apparatus with closure members having at least a component) appears on 1,689 US grants and 1,185 published applications in this corpus.
Search patents in F01L- Granted patents
- 1,689
- Published applications
- 1,185
- Assignees
- 560
- Inventors
- 2,876
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 10 | 0 |
| 1978 | 17 | 0 |
| 1979 | 15 | 0 |
| 1980 | 18 | 0 |
| 1981 | 9 | 0 |
| 1982 | 22 | 0 |
| 1983 | 11 | 0 |
| 1984 | 23 | 0 |
| 1985 | 29 | 0 |
| 1986 | 20 | 0 |
| 1987 | 27 | 0 |
| 1988 | 31 | 0 |
| 1989 | 33 | 0 |
| 1990 | 36 | 0 |
| 1991 | 44 | 0 |
| 1992 | 27 | 0 |
| 1993 | 33 | 0 |
| 1994 | 33 | 0 |
| 1995 | 24 | 0 |
| 1996 | 37 | 0 |
| 1997 | 48 | 0 |
| 1998 | 51 | 0 |
| 1999 | 34 | 0 |
| 2000 | 29 | 0 |
| 2001 | 55 | 16 |
| 2002 | 41 | 48 |
| 2003 | 51 | 39 |
| 2004 | 37 | 38 |
| 2005 | 33 | 34 |
| 2006 | 25 | 44 |
| 2007 | 23 | 55 |
| 2008 | 27 | 42 |
| 2009 | 29 | 53 |
| 2010 | 29 | 49 |
| 2011 | 31 | 45 |
| 2012 | 31 | 54 |
| 2013 | 37 | 54 |
| 2014 | 48 | 47 |
| 2015 | 39 | 57 |
| 2016 | 48 | 79 |
| 2017 | 45 | 56 |
| 2018 | 52 | 70 |
| 2019 | 63 | 68 |
| 2020 | 68 | 63 |
| 2021 | 57 | 69 |
| 2022 | 55 | 33 |
| 2023 | 36 | 25 |
| 2024 | 28 | 22 |
| 2025 | 18 | 13 |
| 2026 | 11 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01L 3/02Selecting particular materials for valve-members or valve-seats479
- F01L 3/20Shapes or constructions of valve members, not provided for in preceding subgroups427
- F01L 3/08Valves guides328
- F01L 3/22Valve-seats not provided for in preceding subgroups of this group228
- F01L 3/10Connecting springs to valve members201
- F01L 2003/25Valve configurations in relation to engineIndexing code181
- F01L 3/12Cooling of valves146
- F01L 3/06Valve members or valve-seats with means for guiding or deflecting the medium124
Recent patents
- Internal combustion engine22 Sep 2026US 12,742,404 B2Toyota Jidosha Kabushiki Kaisha
- Apparatus and method for machining valve seats30 Jun 2026US 12,669,073 B1Van Norman Machine India PVT LTD
- Gas exchange valve for an internal combustion engine and internal combustion engine16 Jun 2026US 12,655,778 B2Everllence SE
- Tapered engine exhaust valve12 May 2026US 12,624,650 B2Caterpillar Inc.
- Plasma electrolytic polished diesel engine components21 Apr 2026US 12,606,930 B2Cummins Inc.
- Engine13 Aug 2026US 2026/0235053 A1Ishikawa Energy Research Co., Ltd.
- Gas valve for an internal combustion engine23 Jul 2026US 2026/0210284 A1
- Telescopic bridge assembly for rocker arm assembly2 Jul 2026US 2026/0185467 A1Eaton Intelligent Power Limited
- Hydrogen combustion engine valve sealing25 Jun 2026US 2026/0176990 A1DAF Trucks N. V.
- Valve guide for guiding a valve stem11 Jun 2026US 2026/0160190 A1
Most cited
By later US patents