F16N 27/005
Proportioning devices: using restrictions
Official title: {using restrictions}
F16N27/005 (Proportioning devices: using restrictions) appears on 38 US grants and 21 published applications in this corpus.
Search patents in F16N- Granted patents
- 38
- Published applications
- 21
- Assignees
- 29
- Inventors
- 66
- Latest grant
- 1 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 2 | 4 |
| 2014 | 5 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 0 | 2 |
| 2020 | 4 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 2 | 0 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Multi-adjustable valve for a lubrication system1 Apr 2025US 12,264,626 B2Pratt & Whitney Canada Corp.
- Packaged oil delivery with integral flow restrictor11 Jun 2024US 12,007,070 B1
- Oil restrictor for emergency lubrication of a component for an aircraft turbine engine7 May 2024US 11,976,786 B2Safran Transmission Systems
- Device for lubricating an internal combustion engine7 Feb 2023US 11,572,812 B2Man Truck & Bus AG
- Automotive driveline unit housing with lubricant feed passage and flow restrictor11 Aug 2020US 10,738,668 B2GKN Driveline North America, Inc.
- Multi-adjustable valve for a lubrication system10 Jul 2025US 2025/0223922 A1Pratt & Whitney Canada Corp.
- Multi-adjustable valve for a lubrication system6 Feb 2025US 2025/0043721 A1Pratt & Whitney Canada Corp.
- Oil restrictor for emergency lubrication of a component for an aircraft turbine engine6 Oct 2022US 2022/0316652 A1Safran Transmission Systems
- Threaded lube restrictor for low flow applications23 May 2019US 2019/0154199 A1Hamilton Sundstrand Corporation
- Device for lubricating an internal combustion engine7 Feb 2019US 2019/0040773 A1Man Truck & Bus AG
Most cited
By later US patents
- Method and apparatus for deploying ram air turbine and lubricating gear drive therefrom36US 5,174,719 ASundstrand Corporation · 1992
- Friction-reducing lubricating-oil filter for internal combustion engine33US 5,032,259 A1991
- Lubricating apparatus for an engine28US 5,517,959 ANippon Soken, Inc. · 1996
- Oil circulating apparatus for automatic transmission15US 6,520,293 B1Fuji Jukogyo Kabushiki Kaisha · 2003
- Automatic lubricator13US 5,598,902 A1997