F04B 1/2042
Valves
F04B1/2042 (Valves) appears on 180 US grants and 131 published applications in this corpus.
Search patents in F04B- Granted patents
- 180
- Published applications
- 131
- Assignees
- 99
- Inventors
- 359
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 4 |
| 2003 | 7 | 3 |
| 2004 | 2 | 4 |
| 2005 | 2 | 11 |
| 2006 | 4 | 3 |
| 2007 | 2 | 5 |
| 2008 | 2 | 3 |
| 2009 | 3 | 3 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 2 |
| 2013 | 2 | 6 |
| 2014 | 3 | 5 |
| 2015 | 3 | 13 |
| 2016 | 4 | 8 |
| 2017 | 4 | 10 |
| 2018 | 8 | 1 |
| 2019 | 10 | 6 |
| 2020 | 5 | 8 |
| 2021 | 12 | 7 |
| 2022 | 2 | 5 |
| 2023 | 7 | 11 |
| 2024 | 8 | 8 |
| 2025 | 5 | 2 |
| 2026 | 6 | 2 |
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
- Slipper component with ceramic surface11 Aug 2026US 12,704,117 B2Ocean Pacific Technologies
- Integrated electro-hydraulic unit14 Apr 2026US 12,601,332 B2Robert Bosch GmbH
- Control plate of a hydraulic machine and hydraulic machine3 Feb 2026US 12,540,604 B2Danfoss A/S
- Hydraulic control circuit for controlling fan blade pitch13 Jan 2026US 12,522,347 B2Safran Aircraft Engines
- Slipper component with ceramic surface30 Jul 2026US 2026/0218689 A1Ocean Pacific Technologies
- Axial piston device12 Mar 2026US 2026/0071606 A1Kubota Corporation
- Hydraulic control circuit for controlling fan blade pitch13 Feb 2025US 2025/0051004 A1Safran Aircraft Engines
- Integrated electro-hydraulic unit9 Jan 2025US 2025/0012262 A1Robert Bosch GmbH
- Hydraulic machine with a threaded central pin for setting machine preload12 Dec 2024US 2024/0410282 A1Dana Motion Systems Italia S.R.L.
Most cited
By later US patents
- Pressure exchanger with an anti-cavitation pressure relief system in the end covers70US 6,540,487 B2Energy Recovery, Inc. · 2003
- Axial piston pump55US 4,934,253 ABrueninghaus Hydraulik GmbH · 1990
- Hydraulic intensifier system25US 4,077,746 ASundstrand Corporation · 1978
- Pressure transformer23US 6,116,138 AInnas Free Piston B.V. · 2000
- Hydrostatic axial piston machine with a control port, a cradle supported swashplate and a swashplate actuating piston22US 6,663,354 B2Linde Aktiengesellschaft · 2003