F15B 2211/216
The pressure sources being pneumatic-to-hydraulic converters
Official title: the pressure sources being pneumatic-to-hydraulic converters
F15B2211/216 (The pressure sources being pneumatic-to-hydraulic converters) appears on 104 US grants and 65 published applications in this corpus.
Search patents in F15B- Granted patents
- 104
- Published applications
- 65
- Assignees
- 58
- Inventors
- 171
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 1 |
| 2003 | 2 | 2 |
| 2004 | 3 | 3 |
| 2005 | 2 | 4 |
| 2006 | 2 | 2 |
| 2007 | 3 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 6 |
| 2010 | 1 | 4 |
| 2011 | 3 | 6 |
| 2012 | 5 | 5 |
| 2013 | 3 | 3 |
| 2014 | 5 | 3 |
| 2015 | 1 | 3 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 3 |
| 2019 | 2 | 1 |
| 2020 | 3 | 2 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 2 | 1 |
| 2024 | 2 | 4 |
| 2025 | 4 | 4 |
| 2026 | 1 | 2 |
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
- Hydraulic actuator with dual pneumatic operation applied as hydraulic actuation for hydroelectric power plants30 Sep 2025US 12,429,075 B2Metal Tecnica Bovenau Ltda
- Hydraulic cylinder and system with pressure intensification16 Sep 2025US 12,416,316 B2Doben Limited
- Utilizing hydrostatic and hydraulic pressure to generate energy, and associated systems, devices, and methods24 Jun 2025US 12,338,785 B2
- Utilizing hydrostatic and hydraulic pressure to generate energy, and associated systems, devices, and methods15 Apr 2025US 12,276,247 B2
- Turbo engine including a system to control pitch of a propeller blade4 Jun 2026US 2026/0153033 A1General Electric Company
- Pneumohydraulic pressure intensifier22 Jan 2026US 2026/0022711 A1WS Wieländer + Schill Engineering GmbH & Co. KG
- Active adjustment method, device, control system and control method of connecting rod length2 Oct 2025US 2025/0304123 A1Zhuzhou Times New Material Technology Co., Ltd.
- Liquid Pressure Calibration Apparatus29 May 2025US 2025/0172448 A1Beijing Const Instruments Technology Inc.
- Hydraulic cylinder and system with pressure intensification27 Mar 2025US 2025/0101997 A1Doben Limited
Most cited
By later US patents
- Systems and methods for energy storage and recovery using compressed gas96US 7,832,207 B2SustainX, Inc. · 2010
- 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
- Systems and methods for energy storage and recovery using compressed gas63US 7,900,444 B1SustainX, Inc. · 2011
- Hydro or oleopneumatic devices58US 3,942,323 A1976