F01L 2001/34436
Features or method for avoiding malfunction due to foreign matters in oil
Official title: {Features or method for avoiding malfunction due to foreign matters in oil}
F01L2001/34436 (Features or method for avoiding malfunction due to foreign matters in oil) appears on 206 US grants and 187 published applications in this corpus.
Search patents in F01L- Granted patents
- 206
- Published applications
- 187
- Assignees
- 73
- Inventors
- 392
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 18 | 7 |
| 2002 | 7 | 7 |
| 2003 | 6 | 15 |
| 2004 | 11 | 10 |
| 2005 | 10 | 12 |
| 2006 | 7 | 9 |
| 2007 | 10 | 8 |
| 2008 | 5 | 17 |
| 2009 | 8 | 8 |
| 2010 | 3 | 8 |
| 2011 | 6 | 4 |
| 2012 | 7 | 5 |
| 2013 | 4 | 7 |
| 2014 | 7 | 1 |
| 2015 | 6 | 5 |
| 2016 | 4 | 7 |
| 2017 | 3 | 14 |
| 2018 | 14 | 11 |
| 2019 | 10 | 8 |
| 2020 | 10 | 10 |
| 2021 | 8 | 4 |
| 2022 | 7 | 2 |
| 2023 | 1 | 3 |
| 2024 | 3 | 1 |
| 2025 | 4 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control device for hydraulic control valve28 Apr 2026US 12,612,912 B2Hitachi Astemo, Ltd.
- Oil passage control valve and valve timing varying device10 Feb 2026US 12,546,239 B2Mikuni Corporation
- Cam phase regulator assembly14 Oct 2025US 12,442,318 B2Schaeffler Technologies AG & Co. KG
- Fluid control valve unit and valve timing change device9 Sep 2025US 12,410,733 B2Mikuni Corporation
- Fluid control valve unit and valve timing changing device22 Jul 2025US 12,366,181 B2Mikuni Corporation
- Variable valve timing mechanism23 Jul 2026US 2026/0210276 A1Subaru Corporation
- Cam phase regulator assembly3 Jul 2025US 2025/0215815 A1Schaeffler Technologies AG & Co. KG
- Oil passage control valve and valve timing varying device26 Jun 2025US 2025/0207517 A1Mikuni Corporation
- Control Device for Hydraulic Control Valve27 Mar 2025US 2025/0101979 A1Hitachi Astemo, Ltd.
- Fluid control valve unit and valve timing change device28 Nov 2024US 2024/0392705 A1Mikuni Corporation
Most cited
By later US patents
- System for regulating valve timing of internal combustion engine93US 5,924,395 AToyota Jidosha Kabushiki Kaisha · 1999
- Valve timing controlling device of internal combustion engine54US 5,957,095 AMitsubishi Denki Kabushiki Kaisha · 1999
- Cylinder head for variable valve timing45US 6,076,492 AYamaha Hatsudoki Kabushiki Kaisha · 2000
- Variable valve timing mechanism for engine38US 6,035,817 AYamaha Hatsudoki Kabushiki Kaisha · 2000
- Valve operating system for internal combustion engines32US 4,883,027 AHonda Giken Kogyo Kabushiki Kaisha · 1989