F01B 3/0052
Cylinder barrel
Official title: {Cylinder barrel}
F01B3/0052 (Cylinder barrel) appears on 18 US grants and 14 published applications in this corpus.
Search patents in F01B- Granted patents
- 18
- Published applications
- 14
- Assignees
- 15
- Inventors
- 38
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 4 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 2 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Insert and method for manufacturing fluid pump9 Dec 2025US 12,492,687 B2Caterpillar Inc.
- Hydraulic device22 Jul 2025US 12,366,232 B2Innas B.V.
- Hydraulic device9 Feb 2021US 10,914,172 B2Innas B.V.
- Cylinder block and swash plate type liquid-pressure rotating apparatus including same6 Oct 2020US 10,794,185 B2Kawasaki Jukogyo Kabushiki Kaisha
- Fluid pressure rotating machine4 Sep 2018US 10,066,484 B2KYB Corporation
- Piston assembly for hydraulic pump13 Nov 2025US 2025/0347276 A1Goodrich Actuation Systems Limited
- Insert and method for manufacturing fluid pump27 Feb 2025US 2025/0067255 A1Caterpillar Inc.
- Hydraulic device4 Jul 2024US 2024/0218871 A1Innas B.V.
- Internal combustion engine with rotating pistons and cylinders and related devices and methods of using the same2 Feb 2023US 2023/0036422 A1
- Internal combustion engine with rotating pistons and cylinders and related devices and methods of using the same15 Dec 2022US 2022/0397055 A1
Most cited
By later US patents
- Axial piston machine having a cooling circuit for the cylinders and pistons14US 5,971,717 ABrueninghaus Hydromatik GmbH · 1999
- Rotary crankless machine12US 3,968,776 ARund Rotary Engines, Inc. · 1976
- Axial piston pump or pumping machine5US 4,108,048 ABrueninghaus Hydraulik GmbH · 1978
- Rotor assembly for rotary power device5US 6,145,429 A2000
- Rotary hydraulic machine having a valve responsive to rotor bore pressure and stator port pressure4US 4,048,903 ALucas Industries Limited · 1977