F01B 11/003
The fluid under pressure being continuously delivered to one motor chamber and
Official title: {the fluid under pressure being continuously delivered to one motor chamber and reacting the other chamber through a valve located in the piston, to bring the piston back in its start-position}
F01B11/003 (The fluid under pressure being continuously delivered to one motor chamber and) appears on 8 US grants and 10 published applications in this corpus.
Search patents in F01B- Granted patents
- 8
- Published applications
- 10
- Assignees
- 4
- Inventors
- 16
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 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 | 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 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 3 |
| 2021 | 0 | 0 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Integrated linear generator system17 Feb 2026US 12,556,063 B2Mainspring Energy, Inc.
- Linear electrical machine1 Jul 2025US 12,348,115 B2Libertine FPE Ltd
- Integrated linear generator system2 Jul 2024US 12,027,956 B2Mainspring Energy, Inc.
- Integrated linear generator system5 Sep 2023US 11,750,065 B2Mainspring Energy, Inc.
- Integrated linear generator system2 Aug 2022US 11,404,937 B2Mainspring Energy, Inc.
- Linear electrical machine16 Oct 2025US 2025/0323553 A1Libertine FPE Ltd
- Integrated linear generator system22 May 2025US 2025/0167632 A1Mainspring Energy, Inc.
- Integrated linear generator system23 Jan 2025US 2025/0030317 A1Mainspring Energy, Inc.
- Integrated linear generator system15 Feb 2024US 2024/0055946 A1Mainspring Energy, Inc.
- Integrated linear generator system15 Dec 2022US 2022/0399784 A1Mainspring Energy, Inc.
Most cited
By later US patents