F15B 2211/8855
Compressible fluids
Official title: Compressible fluids, e.g. specific to pneumatics
F15B2211/8855 (Compressible fluids) appears on 295 US grants and 359 published applications in this corpus.
Search patents in F15B- Granted patents
- 295
- Published applications
- 359
- Assignees
- 190
- Inventors
- 665
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 3 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 2 |
| 2008 | 2 | 0 |
| 2009 | 1 | 4 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 2 |
| 2013 | 0 | 3 |
| 2014 | 1 | 13 |
| 2015 | 4 | 8 |
| 2016 | 5 | 8 |
| 2017 | 9 | 14 |
| 2018 | 10 | 24 |
| 2019 | 15 | 24 |
| 2020 | 27 | 31 |
| 2021 | 32 | 53 |
| 2022 | 35 | 40 |
| 2023 | 27 | 33 |
| 2024 | 37 | 32 |
| 2025 | 34 | 31 |
| 2026 | 19 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valve control device18 Aug 2026US 12,710,110 B2Alfa Laval Corporate AB
- Systems and methods for synchronized valve actuation28 Jul 2026US 12,693,691 B2Swagelok Company
- Apparatus for operating a machine work tool23 Jun 2026US 12,662,798 B2Caterpillar Global Mining LLC
- Control device of a pneumatic element23 Jun 2026US 12,663,024 B2Gimatic S.p.A.
- Safety valve, pneumatic actuator, and vehicle23 Jun 2026US 12,663,025 B2Zf Cv Systems Europe BV
- Pneumatic automation device, maintenance assembly, pneumatic system, and method17 Sep 2026US 2026/0276012 A1Festo AG & Co.
- Dual-wall cylinder for fluid control device actuator13 Aug 2026US 2026/0235144 A1
- Contact estimation method, contact estimation program, and contact estimation device30 Jul 2026US 2026/0216889 A1Bridgestone Corporation
- Intelligent air management module30 Jul 2026US 2026/0217081 A1Beijingwest Industries Co., Ltd.
- Sliding device and fluidic cylinder16 Jul 2026US 2026/0201909 A1Festo AG & Co.
Most cited
By later US patents
- Digitally controlled air-over-hydraulic actuator and method50US 4,765,225 A1988
- Method and device for the pneumatic operation of a tool45US 7,328,575 B2Cargine Engineering AB · 2008
- Linear-acting controllable pneumatic actuator and motion control apparatus including a field responsive medium and control method therefor35US 6,302,249 B1Lord Corporation · 2001
- Lightweight, safe hydraulic power system and a method of operation thereof27US 5,507,144 AThe United States of America as represented by the Administrator of the U. S. Environmental Protection Agency · 1996
- Actuator control system19US 4,036,106 ASouthwestern Manufacturing Co. · 1977