F01B 1/0644
Pistons
Official title: {Pistons}
F01B1/0644 (Pistons) appears on 49 US grants and 9 published applications in this corpus.
Search patents in F01B- Granted patents
- 49
- Published applications
- 9
- Assignees
- 20
- Inventors
- 45
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 3 |
| 2023 | 1 | 0 |
| 2024 | 2 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Pneumatic motor9 Sep 2025US 12,410,710 B2Circle Dynamics Inc.
- Bearing device for radial piston machine20 Aug 2024US 12,065,933 B2Daido Metal Company Ltd.
- Bearing device for radial piston machine25 Jun 2024US 12,018,566 B2Daido Metal Company Ltd.
- Ball transfer mechanism with polycrystalline diamond bearing support8 Aug 2023US 11,719,046 B2National Technology & Engineering Solutions of Sandia, LLC
- Ball transfer mechanism with polycrystalline diamond bearing support6 Apr 2021US 10,968,700 B1National Technology & Engineering Solutions of Sandia, LLC
- Piston assembly for hydraulic pump13 Nov 2025US 2025/0347276 A1Goodrich Actuation Systems Limited
- Improvements to a pneumatic motor23 Jun 2022US 2022/0195872 A1Circle Dynamics Inc.
- Bearing device for radial piston machine31 Mar 2022US 2022/0098981 A1Daido Metal Company Ltd.
- Bearing device for radial piston machine31 Mar 2022US 2022/0098982 A1Daido Metal Company Ltd.
- Ball transfer mechanism with polycrystalline diamond bearing support8 Jul 2021US 2021/0207437 A1National Technology & Engineering Solutions of Sandia, LLC
Most cited
By later US patents
- Compressed air engine36US 4,124,978 A1978
- Ball transfer mechanism with polycrystalline diamond bearing support24US 10,968,700 B1National Technology & Engineering Solutions of Sandia, LLC · 2021
- Rotating cylinder wheel and ball-piston wheel motor, generator, and pump assembly19US 3,942,913 A1976
- Radial piston machine14US 4,555,223 AITT Industries, Inc. · 1985
- Fluid pressure operated rotary stepper actuator11US 4,066,002 AThe Bendix Corporation · 1978