F01M 2011/0491
Filing cap with special features
Official title: {Filing cap with special features}
F01M2011/0491 (Filing cap with special features) appears on 108 US grants and 71 published applications in this corpus.
Search patents in F01M- Granted patents
- 108
- Published applications
- 71
- Assignees
- 72
- Inventors
- 202
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 0 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 4 |
| 2005 | 2 | 3 |
| 2006 | 2 | 4 |
| 2007 | 2 | 1 |
| 2008 | 2 | 4 |
| 2009 | 0 | 2 |
| 2010 | 2 | 1 |
| 2011 | 2 | 3 |
| 2012 | 2 | 2 |
| 2013 | 1 | 3 |
| 2014 | 1 | 3 |
| 2015 | 5 | 3 |
| 2016 | 3 | 3 |
| 2017 | 2 | 1 |
| 2018 | 2 | 6 |
| 2019 | 2 | 4 |
| 2020 | 5 | 8 |
| 2021 | 2 | 3 |
| 2022 | 9 | 2 |
| 2023 | 1 | 3 |
| 2024 | 2 | 3 |
| 2025 | 7 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oil tank access port cover for an aircraft engine oil system16 Jun 2026US 12,655,935 B2Pratt & Whitney Canada Corp.
- Service tool for coupling to a service port receiver associated with a gearbox31 Mar 2026US 12,589,475 B2Walnab Pty Ltd
- Closing structure for tube member and engine provided therewith10 Mar 2026US 12,571,334 B2Kawasaki Motors, Ltd.
- Small air-cooled engine assembly with dry sump lubrication system16 Sep 2025US 12,416,252 B2Briggs & Stratton Corporation
- Device configured to be mounted on an oil tank of an aircraft turbomachine, oil supply assembly and associated method of use9 Sep 2025US 12,410,735 B2Safran Aero Boosters SA
- Oil tank access port cover for an aircraft engine oil system26 Mar 2026US 2026/0085785 A1Pratt & Whitney Canada Corp.
- Vented oil change cap5 Mar 2026US 2026/0063059 A1
- Mechanical system having an oil sampling device4 Dec 2025US 2025/0369834 A1Airbus Helicopters
- Device configured to be mounted on an oil tank of an aircraft turbomachine, oil supply assembly and associated method of use27 Feb 2025US 2025/0067200 A1Safran Aero Boosters SA
- Closing structure for tube member and engine provided therewith5 Sep 2024US 2024/0295182 A1Kawasaki Motors, Ltd.
Most cited
By later US patents
- Oil fill/air breather cap with integral oil separator60US 4,401,093 AFord Motor Company · 1983
- Cam-on filler neck cap52US 5,529,201 AStant Manufacturing Inc. · 1996
- Releasable locking means for closure caps46US 4,223,799 ATime Saving Falls, Inc. · 1980
- Oil filler funnel and cap46US 4,703,867 AInternational Technology Corporation · 1987
- Cap with collapsible funnel37US 5,033,521 A1991