F01M 11/06
Means for keeping lubricant level constant or for accommodating movement or position
Official title: Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
F01M11/06 (Means for keeping lubricant level constant or for accommodating movement or position) appears on 318 US grants and 219 published applications in this corpus.
Search patents in F01M- Granted patents
- 318
- Published applications
- 219
- Assignees
- 161
- Inventors
- 607
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 9 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 9 | 0 |
| 1989 | 3 | 0 |
| 1990 | 8 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 1 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 11 | 0 |
| 2000 | 4 | 0 |
| 2001 | 11 | 6 |
| 2002 | 7 | 6 |
| 2003 | 7 | 8 |
| 2004 | 9 | 8 |
| 2005 | 4 | 11 |
| 2006 | 9 | 2 |
| 2007 | 2 | 4 |
| 2008 | 0 | 2 |
| 2009 | 4 | 7 |
| 2010 | 1 | 8 |
| 2011 | 6 | 9 |
| 2012 | 5 | 14 |
| 2013 | 13 | 11 |
| 2014 | 9 | 15 |
| 2015 | 12 | 15 |
| 2016 | 9 | 17 |
| 2017 | 13 | 8 |
| 2018 | 7 | 13 |
| 2019 | 22 | 11 |
| 2020 | 8 | 14 |
| 2021 | 8 | 5 |
| 2022 | 12 | 6 |
| 2023 | 7 | 8 |
| 2024 | 8 | 5 |
| 2025 | 7 | 5 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Oil tank for a turbomachine with a lower compartment having an oil outlet duct that is negative-G-compatible15 Sep 2026US 12,735,996 B2Safran Aero Boosters SA
- Method of operating a lubrication system for a turbine engine14 Jul 2026US 12,680,474 B2General Electric Company
- Internal combustion engine for a motor vehicle, motor vehicle, and method31 Mar 2026US 12,590,553 B2Bayerische Motoren Werke Aktiengesellschaft
- Oil feed management system23 Sep 2025US 12,421,879 B1Pratt & Whitney Canada Corp.
- Flotation-based valve to prevent oil from exiting a vehicle oil sump5 Aug 2025US 12,378,904 B2Atieva, Inc.
- Oil tank for a turbomachine with a lower compartment having an oil outlet duct that is negative-g-compatible20 Aug 2026US 2026/0243173 A1Safran Aero Boosters SA
- Internal combustion engine arranged with the crankshaft at the top and corresponding control method20 Nov 2025US 2025/0354505 A1
- Vertically storable engine and mower31 Jul 2025US 2025/0243795 A1Briggs & Stratton Corporation
- Oil tank for aircraft engine26 Jun 2025US 2025/0207511 A1Pratt & Whitney Canada Corp.
- Device for detecting drop of oil pressure13 Mar 2025US 2025/0084776 A1Hyundai Motor Company
Most cited
By later US patents
- Automatic crankcase oil change and makeup system68US 4,869,346 A1989
- Windmill and zero gravity lubrication system for a gas turbine engine65US 8,230,974 B2United Technologies Corporation · 2012
- Automatic crankcase oil change and makeup system51US 5,390,762 APower Plus, Inc. · 1995
- Uninterruptible oil supply system51US 6,463,819 B1Pratt & Whitney Canada Corp. · 2002
- Lubrication system with extended emergency operability50US 8,020,665 B2United Technologies Corporation · 2011