F01M 2001/1057
Comprising a plurality of filters, parallel or serial
Official title: {comprising a plurality of filters, parallel or serial}
F01M2001/1057 (Comprising a plurality of filters, parallel or serial) appears on 53 US grants and 52 published applications in this corpus.
Search patents in F01M- Granted patents
- 53
- Published applications
- 52
- Assignees
- 43
- Inventors
- 139
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 3 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 3 | 1 |
| 2012 | 1 | 1 |
| 2013 | 2 | 3 |
| 2014 | 1 | 2 |
| 2015 | 0 | 2 |
| 2016 | 1 | 4 |
| 2017 | 2 | 4 |
| 2018 | 2 | 6 |
| 2019 | 2 | 5 |
| 2020 | 3 | 3 |
| 2021 | 3 | 4 |
| 2022 | 5 | 1 |
| 2023 | 3 | 1 |
| 2024 | 3 | 0 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
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.
- Filter insert and guide arrangement25 Feb 2025US 12,233,361 B2Volvo Truck Corporation
- Oil filter housing and system13 Aug 2024US 12,060,816 B2Discovery Energy, LLC
- Centrifugal debris pre-separator for turbine engine oil filter30 Apr 2024US 11,970,960 B2Rtx Corporation
- Oil filtration system5 Mar 2024US 11,918,934 B2Rtx Corporation
- Internal combustion engine and internal combustion engine system18 Jun 2026US 2026/0168413 A1Isuzu Motors Limited
- Drivetrain of wind turbine with lubrication system and wind turbine comprising lubrication system30 Apr 2026US 2026/0117749 A1Envision Energy CO.,LTD
- Mechanical system provided with moving mechanical elements, a magnetic plug and a lubrication system provided with mechanical and magnetic filters14 Aug 2025US 2025/0257796 A1Airbus Helicopters
- Lubricant filter system, aircraft engine, and method of operating a lubricant system3 Apr 2025US 2025/0109701 A1Pratt & Whitney Candada Corp.
- Oil filter housing and system5 Oct 2023US 2023/0313715 A1Kohler Co.
Most cited
By later US patents
- Oil filtration system and method42US 5,121,599 AUnited Technologies Corporation · 1992
- Filter for liquids, in particular internal-combustion engine lubricant oils35US 5,589,060 AKnecht Filterwerke GmbH · 1996
- Method and apparatus for filtering impurities out of fluid30US 4,655,914 AOrigin Company, Limited · 1987
- Automatic switching duplex filterhead and diesel fuel conditioning system29US 6,474,289 B1Fleetguard, Inc. · 2002
- Multiple lubricating oil filter for internal combustion engines, with a member for monitoring the degree of clogging of the filtration surface28US 4,885,082 AItal Idee s.r.l. an Italian Limited Liability Company · 1989