F01M 9/104
Of tappets
Official title: {of tappets}
F01M9/104 (Of tappets) appears on 57 US grants and 32 published applications in this corpus.
Search patents in F01M- Granted patents
- 57
- Published applications
- 32
- Assignees
- 36
- Inventors
- 117
- Latest grant
- 1 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 2 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 3 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 4 |
| 2017 | 4 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 3 |
| 2020 | 4 | 3 |
| 2021 | 1 | 1 |
| 2022 | 4 | 4 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Maintaining oil pressure during cylinder deactivation operation1 Apr 2025US 12,264,604 B2Cummins Inc.
- Systems and methods for rocker arm lubrication20 Feb 2024US 11,905,858 B2Powerhouse Engine Solutions Switzerland IP Holding GmbH
- Systems and methods for rocker arm lubrication6 Jun 2023US 11,668,210 B2Powerhouse Engine Solutions Switzerland IP Holding GmbH
- Systems and methods for variable displacement engine oil flow8 Nov 2022US 11,492,934 B1Ford Global Technologies, LLC
- Optimized tubular structure14 Jun 2022US 11,359,522 B2GM Global Technology Operations LLC
- Maintaining oil pressure during cylinder deactivation operation1 Dec 2022US 2022/0381166 A1Cummins Inc.
- Sliding member10 Feb 2022US 2022/0042425 A1Riken
- Systems and methods for rocker arm lubrication20 Jan 2022US 2022/0018267 A1Powerhouse Engine Solutions Switzerland IP Holding GmbH
- Systems and methods for rocker arm lubrication20 Jan 2022US 2022/0018270 A1Powerhouse Engine Solutions Switzerland IP Holding GmbH
- Fuel injection system and controller for fuel injection system4 Feb 2021US 2021/0033043 A1Denso Corporation
Most cited
By later US patents
- Oil supply system for a valve operating mechanism in internal combustion engines36US 4,729,349 AHonda Giken Kogyo Kabushiki Kaisha · 1988
- Lubrication system for V-type overhead camshaft engine30US 5,143,034 AMazda Motor Corporation · 1992
- Light weight cam follower29US 5,566,652 AEaton Corporation · 1996
- Valve lifter apparatus28US 6,328,009 B1Competition Cams, Inc. · 2001
- Roller cam follower with positive lubrication27US 4,708,102 ANavistar International Transportation Corp. · 1987