F15B 2211/214
The pressure sources being hydrotransformers
Official title: the pressure sources being hydrotransformers
F15B2211/214 (The pressure sources being hydrotransformers) appears on 132 US grants and 114 published applications in this corpus.
Search patents in F15B- Granted patents
- 132
- Published applications
- 114
- Assignees
- 83
- Inventors
- 257
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 8 | 1 |
| 2002 | 5 | 2 |
| 2003 | 2 | 7 |
| 2004 | 0 | 3 |
| 2005 | 6 | 3 |
| 2006 | 1 | 1 |
| 2007 | 2 | 4 |
| 2008 | 2 | 2 |
| 2009 | 1 | 4 |
| 2010 | 4 | 4 |
| 2011 | 3 | 10 |
| 2012 | 4 | 7 |
| 2013 | 4 | 9 |
| 2014 | 8 | 10 |
| 2015 | 2 | 4 |
| 2016 | 6 | 5 |
| 2017 | 6 | 4 |
| 2018 | 7 | 2 |
| 2019 | 4 | 4 |
| 2020 | 3 | 3 |
| 2021 | 4 | 6 |
| 2022 | 4 | 4 |
| 2023 | 4 | 3 |
| 2024 | 3 | 5 |
| 2025 | 7 | 3 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pneumohydraulic pressure intensifier12 May 2026US 12,624,710 B2WS Wieländer + Schill Engineering GmbH & Co. KG
- Pressure multiplier31 Mar 2026US 12,590,593 B2Camozzi Automation S.P.A.
- Hydraulic device14 Oct 2025US 12,442,393 B2Aalborg Universitet
- Fluid circuit7 Oct 2025US 12,435,738 B2Eagle Industry Co., Ltd.
- Hydraulic cylinder and system with pressure intensification16 Sep 2025US 12,416,316 B2Doben Limited
- 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
- Pneumohydraulic pressure intensifier22 Jan 2026US 2026/0022711 A1WS Wieländer + Schill Engineering GmbH & Co. KG
- Fluid circuit1 May 2025US 2025/0137468 A1Eagle Industry Co., Ltd.
Most cited
By later US patents
- Systems and methods for energy storage and recovery using compressed gas96US 7,832,207 B2SustainX, Inc. · 2010
- Regenerative adaptive fluid motor control77US 6,349,543 B12002
- Pneumo-hydraulic converter for energy storage76US 6,145,311 A2000
- Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression73US 7,874,155 B2SustainX, Inc. · 2011
- Hydraulic system for supplying hydraulic fluid to a hydraulically operated device alternately at pressures of different value71US 4,142,368 AWelko Industriale S.p.A. · 1979