F01B 3/0002
Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or
Official title: {having stationary cylinders}
F01B3/0002 (Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or) appears on 173 US grants and 120 published applications in this corpus.
Search patents in F01B- Granted patents
- 173
- Published applications
- 120
- Assignees
- 76
- Inventors
- 259
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 9 | 0 |
| 1979 | 9 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 1 |
| 2003 | 1 | 3 |
| 2004 | 3 | 4 |
| 2005 | 5 | 10 |
| 2006 | 8 | 2 |
| 2007 | 1 | 6 |
| 2008 | 1 | 8 |
| 2009 | 2 | 4 |
| 2010 | 3 | 8 |
| 2011 | 3 | 3 |
| 2012 | 3 | 10 |
| 2013 | 4 | 3 |
| 2014 | 3 | 2 |
| 2015 | 9 | 9 |
| 2016 | 5 | 2 |
| 2017 | 5 | 4 |
| 2018 | 8 | 10 |
| 2019 | 4 | 6 |
| 2020 | 9 | 7 |
| 2021 | 8 | 5 |
| 2022 | 4 | 5 |
| 2023 | 3 | 2 |
| 2024 | 3 | 2 |
| 2025 | 2 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Modular gland arrangements for a fluid end assembly12 Aug 2025US 12,385,397 B2Kerr Machine Co.
- Carriage assembly14 Jan 2025US 12,196,084 B2Zpe Ltd
- Shut-off valve2 Jul 2024US 12,025,009 B2Microtecnica S.R.L.
- Aircraft engine with opposed piston engine11 Jun 2024US 12,006,826 B2Hts LLC
- Modular gland arrangements for a fluid end assembly4 Jun 2024US 12,000,285 B2Kerr Machine Co.
- Axial Piston Machine with Fastening Flange with Off-Center Fastening Openings4 Jun 2026US 2026/0153030 A1Robert Bosch GmbH
- Modular gland arrangements for a fluid end assembly6 Nov 2025US 2025/0341164 A1Kerr Machine Co.
- Propulsion apparatus5 Jun 2025US 2025/0180042 A1
- Cam profile drive assembly1 May 2025US 2025/0137371 A1
- Carriage assembly14 Nov 2024US 2024/0376823 A1Zpe Ltd
Most cited
By later US patents
- Modular gland arrangements for a fluid end assembly61US 10,519,950 B2Kerr Machine Co. · 2019
- Internal combustion engine and operating cycle therefor47US 4,635,590 A1987
- Modular gland arrangements for a fluid end assembly45US 10,914,171 B2Kerr Machine Co. · 2021
- Multiple cylinder sinusoidal engine39US 4,090,478 A1978
- Balanced variable wobble plate drive39US 4,235,116 AU. S. Philips Corporation · 1980