F01B 3/0047
Particularities in the contacting area between cylinder barrel and valve plate
Official title: {Particularities in the contacting area between cylinder barrel and valve plate}
F01B3/0047 (Particularities in the contacting area between cylinder barrel and valve plate) appears on 20 US grants and 16 published applications in this corpus.
Search patents in F01B- Granted patents
- 20
- Published applications
- 16
- Assignees
- 12
- Inventors
- 34
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 3 | 3 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydraulic axial piston machine25 Aug 2026US 12,716,356 B2Danfoss A/S
- Actuation system for a motor6 Jan 2026US 12,516,662 B2Dana Motion Systems Italia S.R.L.
- Centering the housing parts of an axial piston machine25 Nov 2025US 12,480,402 B2Robert Bosch GmbH
- Valve plate, cylinder block, and hydraulic motor28 May 2024US 11,994,098 B2Komatsu Ltd.
- Tilt linkage for variable stroke pump5 Sep 2023US 11,746,763 B2Cw Holdings Ltd
- Centering the Housing Parts of an Axial Piston Machine6 Feb 2025US 2025/0043684 A1Robert Bosch GmbH
- Actuation system for a motor26 Sep 2024US 2024/0318642 A1Dana Motion Systems Italia S.R.L.
- Valve plate, cylinder block, and hydraulic motor7 Sep 2023US 2023/0279833 A1Komatsu Ltd.
- Tilt linkage for variable stroke pump20 Oct 2022US 2022/0333586 A1Cw Holdings Ltd
- Hydrostatic Axial Piston Machine7 Apr 2022US 2022/0106945 A1Robert Bosch GmbH
Most cited
By later US patents
- Quiet hydraulic apparatus20US 4,624,175 A1986
- Hydraulic displacement unit and method of assembly thereof19US 4,620,475 ASundstrand Corporation · 1986
- Fluid power transmission11US 5,022,310 A1991
- Cavitation resistant hydraulic cylinder block porting faces8US 5,085,127 ASundstrand Corporation · 1992
- Reciprocating cylinder swash plate pump7US 7,731,485 B2Innas B.V. · 2010