F01M 2011/0033
With special means for guiding the return of oil into the sump
Official title: {with special means for guiding the return of oil into the sump}
F01M2011/0033 (With special means for guiding the return of oil into the sump) appears on 95 US grants and 88 published applications in this corpus.
Search patents in F01M- Granted patents
- 95
- Published applications
- 88
- Assignees
- 58
- Inventors
- 228
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 8 |
| 2002 | 5 | 3 |
| 2003 | 7 | 1 |
| 2004 | 2 | 3 |
| 2005 | 1 | 1 |
| 2006 | 5 | 3 |
| 2007 | 0 | 5 |
| 2008 | 3 | 4 |
| 2009 | 4 | 4 |
| 2010 | 2 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 3 |
| 2016 | 1 | 6 |
| 2017 | 5 | 7 |
| 2018 | 5 | 4 |
| 2019 | 4 | 11 |
| 2020 | 6 | 3 |
| 2021 | 6 | 6 |
| 2022 | 9 | 4 |
| 2023 | 6 | 2 |
| 2024 | 2 | 2 |
| 2025 | 2 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Engine with reduced noise21 Apr 2026US 12,607,137 B2Toyota Jidosha Kabushiki Kaisha
- Oil tank return for an aircraft engine oil system31 Mar 2026US 12,590,551 B1Pratt & Whitney Canada Corp.
- Oil sump, in particular oil filter module, with a multi-part housing27 Jan 2026US 12,535,022 B2Schwäbische Hüttenwerke Automotive GmbH
- Oil discharge structure15 Apr 2025US 12,276,330 B2JATCO Ltd
- Oil pan with air return ports for directing airflow in internal combustion engines1 Apr 2025US 12,264,606 B1
- Oil tank return for an aircraft engine oil system26 Mar 2026US 2026/0085626 A1Pratt & Whitney Canada Corp.
- Engine22 May 2025US 2025/0163835 A1Toyota Jidosha Kabushiki Kaisha
- Oil sump, in particular oil filter module, with a multi-part housing25 Jul 2024US 2024/0247601 A1Schwäbische Hüttenwerke Automotive GmbH
- Apparatus25 Jan 2024US 2024/0026964 A1JATCO Ltd
- Ventilation/lubrication system of the crank chamber of an internal combustion engine, in particular for vehicles with a rideable saddle13 Jul 2023US 2023/0220792 A1PIAGGIO & C. S. p. A.
Most cited
By later US patents
- Oil pan structure for internal combustion engine30US 5,038,890 ANissan Motor Co., Ltd. · 1991
- Four stroke engine having flexible arrangement28US 6,415,759 B2Bombardier-Rotax GmbH · 2002
- Four stroke engine having a supercharger27US 6,568,376 B2Bombardier-Rotax GmbH · 2003
- Four stroke engine having power take off assembly27US 6,626,140 B2Bombardier-Rotax GmbH · 2003
- Internal combustion engine25US 4,856,486 AHonda Giken Kogyo Kabushiki Kaisha · 1989