F04B 1/0456
Cylindrical
F04B1/0456 (Cylindrical) appears on 71 US grants and 44 published applications in this corpus.
Search patents in F04B- Granted patents
- 71
- Published applications
- 44
- Assignees
- 40
- Inventors
- 140
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 3 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 3 |
| 2013 | 0 | 3 |
| 2014 | 5 | 3 |
| 2015 | 0 | 1 |
| 2016 | 1 | 3 |
| 2017 | 2 | 4 |
| 2018 | 1 | 5 |
| 2019 | 4 | 2 |
| 2020 | 7 | 2 |
| 2021 | 2 | 3 |
| 2022 | 0 | 2 |
| 2023 | 2 | 2 |
| 2024 | 4 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radial piston pumps3 Mar 2026US 12,565,878 B2Domin Fluid Power Limited
- Hydrostatic rotating machine with radial pistons and with improved distribution17 Feb 2026US 12,553,501 B2Robert Bosch GmbH
- Pump unit with conical motor chamber25 Nov 2025US 12,480,484 B2Power Packer North America, Inc.
- Radial piston machine with brake17 Dec 2024US 12,169,006 B2Robert Bosch GmbH
- Radial piston hydraulic device distributing flow by pilot operated check valves and operating method thereof29 Oct 2024US 12,129,874 B2Huaqiao University
- Fuel pump18 Sep 2025US 2025/0290479 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Hydrostatic Rotating Machine with Radial Pistons and with Improved Distribution1 May 2025US 2025/0137517 A1Robert Bosch GmbH
- Fuel pump5 Sep 2024US 2024/0295203 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Radial piston pumps27 Jun 2024US 2024/0209854 A1Domin Fluid Power Limited
- Hydraulic fluid pump and retainer assembly for same18 Apr 2024US 2024/0125309 A1Gd Energy Products, LLC
Most cited
By later US patents
- Valve and seat assembly for a high pressure pump107US 9,631,739 B2Black Horse, LLC · 2017
- Pump assembly useful in internal combustion engines99US 6,669,453 B12003
- Rotary hydrostatic radial piston machines44US 4,686,829 AUnipat AG · 1987
- Offset valve bore in a reciprocating pump44US 8,662,865 B2S,P.M. Flow Control, Inc. · 2014
- Offset valve bore in a reciprocating pump43US 8,662,864 B2S,P.M. Flow Control, Inc. · 2014