F01M 2013/0438
With a filter
Official title: {with a filter}
F01M2013/0438 (With a filter) appears on 361 US grants and 345 published applications in this corpus.
Search patents in F01M- Granted patents
- 361
- Published applications
- 345
- Assignees
- 137
- Inventors
- 650
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 10 | 0 |
| 2001 | 7 | 2 |
| 2002 | 7 | 7 |
| 2003 | 7 | 3 |
| 2004 | 7 | 10 |
| 2005 | 4 | 5 |
| 2006 | 3 | 5 |
| 2007 | 8 | 2 |
| 2008 | 3 | 7 |
| 2009 | 4 | 17 |
| 2010 | 10 | 14 |
| 2011 | 6 | 15 |
| 2012 | 11 | 5 |
| 2013 | 12 | 9 |
| 2014 | 7 | 19 |
| 2015 | 13 | 17 |
| 2016 | 11 | 26 |
| 2017 | 17 | 22 |
| 2018 | 24 | 25 |
| 2019 | 19 | 20 |
| 2020 | 32 | 24 |
| 2021 | 18 | 18 |
| 2022 | 17 | 18 |
| 2023 | 10 | 8 |
| 2024 | 27 | 21 |
| 2025 | 13 | 12 |
| 2026 | 8 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for rotating coalescers maintaining positive recirculation through a dynamic seal6 Oct 2026US 12,752,228 B2Atmus Filtration IP Inc.
- Crankcase oil separation device for internal combustion engine6 Oct 2026US 12,752,229 B2Caterpillar Inc.
- Air-fluid separator6 Oct 2026US 12,753,712 B2Improved Racing Products, LLC
- Crankcase ventilation element29 Sep 2026US 12,747,684 B2Atmus Filtration Inc.
- Crankcase pressure regulator having umbrella style valve8 Sep 2026US 12,729,637 B2Solberg Mfg., Inc.
- Oil separation device and array for internal combustion engine17 Sep 2026US 2026/0275890 A1Caterpillar Inc.
- System and control method13 Aug 2026US 2026/0235056 A1Komatsu Ltd.
- System and control method6 Aug 2026US 2026/0226853 A1Komatsu Ltd.
- Method and control arrangement for estimating a crankcase ventilation flow rate30 Jul 2026US 2026/0218638 A1Scania CV AB
- Axial flow centrifugal separator18 Jun 2026US 2026/0166459 A1Cummins Filtration IP, Inc.
Most cited
By later US patents
- Aerosol separator and method128US 5,853,439 ADonaldson Company, Inc. · 1998
- Aerosol separator; and method111US 6,171,355 B2Donaldson Company, Inc. · 2001
- Crankcase emission control system100US 5,564,401 ADiesel Research Inc. · 1996
- Oil separator for recycled blow-by gas99US 4,627,406 AKabushiki Kaisha Tsuchiya Seisakusho · 1986
- Inertial gas-liquid separator having an inertial collector spaced from a nozzle structure85US 6,290,738 B1Nelson Industries, Inc. · 2001