F04B 1/0531
With cam-actuated distribution members
Official title: with cam-actuated distribution members
F04B1/0531 (With cam-actuated distribution members) appears on 28 US grants and 23 published applications in this corpus.
Search patents in F04B- Granted patents
- 28
- Published applications
- 23
- Assignees
- 22
- Inventors
- 62
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 3 | 3 |
| 2016 | 0 | 1 |
| 2017 | 0 | 3 |
| 2018 | 5 | 1 |
| 2019 | 3 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 1 |
| 2024 | 2 | 0 |
| 2025 | 3 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Piston pump and method of manufacturing the same7 Jul 2026US 12,674,442 B2
- Piston pump and method of manufacturing the same11 Nov 2025US 12,467,439 B1
- Partial stroke fluidic pump-motor with high mechanical efficiency28 Oct 2025US 12,454,945 B2Regents of the University of Minnesota
- Piston pump and method of manufacturing the same8 Apr 2025US 12,270,395 B1
- Hydraulic actuation device1 Oct 2024US 12,103,094 B2Kabushiki Kaisha Ogura
- Piston pump and method of manufacturing the same29 Jan 2026US 2026/0028971 A1
- Piston pump and method of manufacturing the same13 Nov 2025US 2025/0347269 A1
- Partial stroke fluidic pump-motor with high mechanical efficiency9 Nov 2023US 2023/0358217 A1Regents of the University of Minnesota
- Hydraulic actuation device8 Dec 2022US 2022/0388079 A1Kabushiki Kaisha Ogura
- Strapping Tool21 Apr 2022US 2022/0119140 A1Golden Bear LLC
Most cited
By later US patents
- Radial piston pump assemblies and use thereof in hydraulic circuits95US 10,125,750 B2HUSCO International, Inc. · 2018
- Hydraulic regenerative braking and four wheel drive system17US 5,263,401 A1993
- Hydraulic regenerative braking and four wheel drive system17US 5,323,688 A1994
- Noise-abated pump unit, in particular for controlled brake systems16US 5,839,349 AITT Automotive Europe GmbH · 1998
- Pump with spring loaded valve10US 4,486,152 AHydro Rene Leduc · 1984