F01B 19/00
Positive-displacement machines or engines of flexible-wall type
F01B19/00 (Positive-displacement machines or engines of flexible-wall type) appears on 124 US grants and 51 published applications in this corpus.
Search patents in F01B- Granted patents
- 124
- Published applications
- 51
- Assignees
- 65
- Inventors
- 171
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 10 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 9 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 2 |
| 2003 | 2 | 1 |
| 2004 | 0 | 3 |
| 2005 | 1 | 1 |
| 2006 | 0 | 5 |
| 2007 | 2 | 0 |
| 2008 | 4 | 4 |
| 2009 | 0 | 0 |
| 2010 | 4 | 3 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 4 |
| 2014 | 2 | 2 |
| 2015 | 2 | 3 |
| 2016 | 1 | 2 |
| 2017 | 5 | 4 |
| 2018 | 2 | 1 |
| 2019 | 3 | 2 |
| 2020 | 4 | 1 |
| 2021 | 1 | 3 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 2 | 4 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Pulsating pneumatic motor26 Aug 2025US 12,398,643 B2
- Hydrostatic pressure to kinetic energy conversion system27 May 2025US 12,313,028 B2
- Controlling multiple eversion-based actuators19 Nov 2024US 12,146,511 B2Electronics for Imaging, Inc.
- Energy conversion apparatus2 Apr 2024US 11,946,458 B2
- Actuator21 Nov 2023US 11,821,114 B2Bridgestone Corporation
- Controlling multiple eversion-based actuators6 Mar 2025US 2025/0075713 A1
- Pulsating pneumatic motor31 Oct 2024US 2024/0360763 A1Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences
- Controlling multiple eversion-based actuators25 Jul 2024US 2024/0247665 A1Electronics for Imaging, Inc.
- Active reeling and steering control of a vine robot9 May 2024US 2024/0151144 A1The Regents of the University of California
- A hydrostatic pressure to kinetic energy conversion system11 Jan 2024US 2024/0011458 A1
Most cited
By later US patents
- Folded bladder for fluid dynamic muscle57US 5,018,436 AWelch Allyn, Inc. · 1991
- Free-piston regenerative hot gas hydraulic engine48US 4,215,548 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1980
- Solid state differential pressure sensor with overpressure stop and free edge construction47US 4,905,575 ARosemount Inc. · 1990
- Elastically deformable fluid actuator42US 4,976,191 AKabushiki Kaisha Toshiba · 1990
- Pumps with floating wrist pins40US 4,381,179 ALear Siegler, Inc. · 1983