F04C 2/105
Details concerning timing or distribution valves
Official title: {Details concerning timing or distribution valves}
F04C2/105 (Details concerning timing or distribution valves) appears on 108 US grants and 46 published applications in this corpus.
Search patents in F04C- Granted patents
- 108
- Published applications
- 46
- Assignees
- 37
- Inventors
- 113
- Latest grant
- 10 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 5 |
| 2003 | 3 | 5 |
| 2004 | 8 | 5 |
| 2005 | 2 | 1 |
| 2006 | 2 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 4 | 3 |
| 2011 | 1 | 0 |
| 2012 | 2 | 1 |
| 2013 | 0 | 1 |
| 2014 | 3 | 6 |
| 2015 | 1 | 3 |
| 2016 | 5 | 0 |
| 2017 | 1 | 1 |
| 2018 | 3 | 1 |
| 2019 | 2 | 2 |
| 2020 | 2 | 3 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Demagnetization control for transmission actuator10 Sep 2024US 12,085,130 B2Schaeffler Technologies AG & Co. KG
- Pump with residual magnetism attenuation6 Dec 2022US 11,519,465 B2Schaeffler Technologies AG & Co. KG
- Electric gerotor pump and method for producing same17 Aug 2021US 11,092,153 B2Nidec Gpm GmbH
- Hydraulic motor disc valve optimization20 Apr 2021US 10,982,669 B2Parker-Hannifin Corporation
- Power transfer system and method using a variable speed ratio regulating device4 Aug 2020US 10,731,735 B1Mainstream Engineering Corporation
- Gerotor-type fluid motor4 Jun 2026US 2026/0153084 A1
- Check valve and hydraulic gerotor or geroler machine2 May 2024US 2024/0142009 A1
- Demagnetization control for transmission actuator2 Feb 2023US 2023/0034641 A1Schaeffler Technologies AG & Co. KG
- Pump with residual magnetism attenuation19 Nov 2020US 2020/0362923 A1Schaeffler Technologies AG & Co. KG
- Electric gerotor pump and method for producing same11 Jun 2020US 2020/0182241 A1Nidec Gpm GmbH
Most cited
By later US patents
- High torque, low speed hydraulic motor25US 4,457,677 A1984
- Gerotor gearset device18US 4,087,215 ATRW Inc. · 1978
- Rotary valve for fluid motor or pump17US 4,298,318 ATokyo Keiki Co., Ltd. · 1981
- Gerotor machine with flow control recesses in the inner gear member16US 4,264,288 AG. L. Rexroth GmbH · 1981
- Gerotor apparatus for a quasi-isothermal Brayton cycle engine16US 8,821,138 B2The Texas A&M University System · 2014