F15B 2211/21
Systems with pressure sources other than pumps
Official title: Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
F15B2211/21 (Systems with pressure sources other than pumps) appears on 679 US grants and 654 published applications in this corpus.
Search patents in F15B- Granted patents
- 679
- Published applications
- 654
- Assignees
- 380
- Inventors
- 1,329
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 10 | 0 |
| 1997 | 2 | 0 |
| 1998 | 10 | 0 |
| 1999 | 4 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 1 |
| 2002 | 11 | 7 |
| 2003 | 6 | 16 |
| 2004 | 8 | 13 |
| 2005 | 18 | 17 |
| 2006 | 12 | 11 |
| 2007 | 7 | 13 |
| 2008 | 5 | 11 |
| 2009 | 7 | 29 |
| 2010 | 8 | 18 |
| 2011 | 17 | 20 |
| 2012 | 11 | 21 |
| 2013 | 15 | 40 |
| 2014 | 24 | 37 |
| 2015 | 22 | 44 |
| 2016 | 29 | 39 |
| 2017 | 39 | 38 |
| 2018 | 36 | 31 |
| 2019 | 29 | 45 |
| 2020 | 44 | 33 |
| 2021 | 40 | 37 |
| 2022 | 37 | 37 |
| 2023 | 32 | 31 |
| 2024 | 36 | 27 |
| 2025 | 28 | 29 |
| 2026 | 17 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F15B 2211/212The pressure sources being accumulatorsIndexing code505
- F15B 2211/214The pressure sources being hydrotransformersIndexing code132
- F15B 2211/216The pressure sources being pneumatic-to-hydraulic convertersIndexing code104
- F15B 2211/218The pressure sources being pyrotechnical chargesIndexing code8
Recent patents
- Control method based on a four-chamber hydraulic cylinder6 Oct 2026US 12,753,780 B2Taiyuan University of Technology
- Work machine accessory motor load protection8 Sep 2026US 12,729,699 B2Caterpillar Inc.
- Energy storage and reutilization for a single-rod electro-hydrostatic actuator9 Jun 2026US 12,650,138 B2University of Manitoba
- Apparatus for control of multiple fluid powered actuators26 May 2026US 12,638,028 B2Universal City Studios LLC
- Hydraulic drive system having a 2×2Q pump unit19 May 2026US 12,631,200 B2HMS-HYBRID MOTION SOLUTIONS GmbH
- Work machine6 Aug 2026US 2026/0226927 A1Komatsu Ltd.
- Turbo engine including a system to control pitch of a propeller blade4 Jun 2026US 2026/0153033 A1General Electric Company
- System for driving a hydraulic member23 Apr 2026US 2026/0110312 A1Poclain Hydraulics Industrie
- Hydraulic circuit using a pressure adapter16 Apr 2026US 2026/0104062 A1Poclain Hydraulics Industrie
- Displacement Power Controllers and Applications5 Mar 2026US 2026/0063150 A1Perisseuma Technologies LLC
Most cited
By later US patents
- Fail-safe actuation system926US 9,239,064 B2Moog Inc. · 2016
- Linear servoactuator with integrated transformer position sensor158US 4,628,499 AScientific-Atlanta, Inc. · 1986
- Accumulator engine103US 5,579,640 AThe United States of America as represented by the Administrator of the Environmental Protection Agency · 1996
- Systems and methods for energy storage and recovery using compressed gas96US 7,832,207 B2SustainX, Inc. · 2010
- Closed-system electrohydraulic actuator93US 7,051,526 B2Moog Inc. · 2006