F01M 13/022
Using engine inlet suction
Official title: {using engine inlet suction}
F01M13/022 (Using engine inlet suction) appears on 481 US grants and 368 published applications in this corpus.
Search patents in F01M- Granted patents
- 481
- Published applications
- 368
- Assignees
- 170
- Inventors
- 936
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 13 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 11 | 0 |
| 2000 | 16 | 0 |
| 2001 | 12 | 7 |
| 2002 | 14 | 9 |
| 2003 | 12 | 11 |
| 2004 | 18 | 16 |
| 2005 | 8 | 8 |
| 2006 | 9 | 7 |
| 2007 | 7 | 9 |
| 2008 | 6 | 12 |
| 2009 | 7 | 19 |
| 2010 | 6 | 22 |
| 2011 | 16 | 21 |
| 2012 | 21 | 13 |
| 2013 | 13 | 14 |
| 2014 | 16 | 23 |
| 2015 | 19 | 23 |
| 2016 | 19 | 22 |
| 2017 | 22 | 21 |
| 2018 | 26 | 18 |
| 2019 | 17 | 13 |
| 2020 | 22 | 28 |
| 2021 | 24 | 13 |
| 2022 | 16 | 10 |
| 2023 | 7 | 5 |
| 2024 | 8 | 5 |
| 2025 | 6 | 9 |
| 2026 | 1 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Blow-by gas processing apparatus, internal combustion engine, and supercharger18 Aug 2026US 12,710,003 B2IHI Corporation
- Blow-by gas recirculation device9 Dec 2025US 12,492,652 B2Toyota Jidosha Kabushiki Kaisha
- Method and device for diagnosing a leakage of a crankcase ventilation line of a crankcase ventilation device for an internal combustion engine14 Oct 2025US 12,442,321 B2Vitesco Technologies GmbH
- Blow-by gas recirculation device2 Sep 2025US 12,404,825 B2Toyota Jidosha Kabushiki Kaisha
- Compressed gas assisted inertial impactor with elastomeric nozzles24 Jun 2025US 12,338,755 B2Cummins Filtration Inc.
- Oil separator structure for blow-by gas recirculation system, and vehicle1 Oct 2026US 2026/0295464 A1Isuzu Motors Limited
- Air system and method for engine utilizing electric-assist compressor for purging gases2 Jul 2026US 2026/0185470 A1Caterpillar Inc.
- Internal combustion engine and method for operating an internal combustion engine18 Jun 2026US 2026/0168416 A1
- Systems and methods for monitoring and controlling crankcase combustible gas concentrations18 Jun 2026US 2026/0168450 A1Caterpillar Inc.
- Internal combustion engine11 Jun 2026US 2026/0160225 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Crankcase emission control system100US 5,564,401 ADiesel Research Inc. · 1996
- Oil separator for reducing oil losses from crankcase ventilation71US 5,450,835 ACummins Engine Company, Inc. · 1995
- Crankcase ventilation system65US 6,123,061 ACummins Engine Company, Inc. · 2000
- Dry sump crankcase60US 4,674,457 AFord Motor Company · 1987
- Air-oil separator and method of separation58US 4,269,607 A1981