F01M 2001/1092
Comprising valves bypassing the filter
Official title: {comprising valves bypassing the filter}
F01M2001/1092 (Comprising valves bypassing the filter) appears on 106 US grants and 65 published applications in this corpus.
Search patents in F01M- Granted patents
- 106
- Published applications
- 65
- Assignees
- 66
- Inventors
- 185
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 5 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 2 | 1 |
| 2012 | 1 | 1 |
| 2013 | 3 | 6 |
| 2014 | 3 | 4 |
| 2015 | 3 | 2 |
| 2016 | 2 | 2 |
| 2017 | 7 | 6 |
| 2018 | 8 | 10 |
| 2019 | 3 | 1 |
| 2020 | 4 | 5 |
| 2021 | 5 | 3 |
| 2022 | 6 | 6 |
| 2023 | 2 | 1 |
| 2024 | 1 | 2 |
| 2025 | 4 | 4 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lubricant filter system, aircraft engine, and method of operating a lubricant system19 May 2026US 12,631,133 B2Pratt & Whitney Canada Corp.
- Structure of split-type oil channel of oil filter base and oil cooler connecting base in vehicle3 Feb 2026US 12,540,567 B1Wenzhou Bonai Auto Radiator Co., Ltd.
- Small air-cooled engine assembly with dry sump lubrication system16 Sep 2025US 12,416,252 B2Briggs & Stratton Corporation
- Multi temperature generator and engine shared oil2 Sep 2025US 12,404,808 B2Hamilton Sundstrand Corporation
- Lubricant manifold for internal combustion engine22 Jul 2025US 12,366,186 B2Cummins Inc.
- Engine oil system for an aircraft propulsion system27 Nov 2025US 2025/0361820 A1Pratt & Whitney Canada Corp.
- Multi temperature generator and engine shared oil17 Jul 2025US 2025/0230772 A1Hamilton Sundstrand Corporation
- Lubricant filter system, aircraft engine, and method of operating a lubricant system3 Apr 2025US 2025/0109701 A1Pratt & Whitney Candada Corp.
- Oil filtration and lubrication system for sealing system of azimuth thruster2 Jan 2025US 2025/0002131 A1Steerprop Oy
- Oil filter housing system, oil filtration system, and engine system19 Dec 2024US 2024/0418109 A1Cummins Inc.
Most cited
By later US patents
- Lubrication fluid filtering and cooling assembly101US 4,324,213 ACummins Engine Company, Inc. · 1982
- Lubricant filter for internal combustion engines98US 4,755,289 ATecnocar S p A · 1988
- Fluid filter with filter bypass valve and sealing surface on filter element side73US 5,770,054 AFirma Ing. Walter Hengst GmbH & Co. KG · 1998
- Liquid filter with connection flange73US 5,922,196 AIng. Walter Hengst GmbH & Co. KG · 1999
- Liquid filter72US 5,538,626 AIng. Walter Hengst GmbH & Co. KG · 1996