F15B 2211/40515
With variable throttles or orifices
Official title: with variable throttles or orifices
F15B2211/40515 (With variable throttles or orifices) appears on 750 US grants and 457 published applications in this corpus.
Search patents in F15B- Granted patents
- 750
- Published applications
- 457
- Assignees
- 361
- Inventors
- 1,260
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 10 | 0 |
| 1978 | 10 | 0 |
| 1979 | 13 | 0 |
| 1980 | 9 | 0 |
| 1981 | 8 | 0 |
| 1982 | 18 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 17 | 0 |
| 1988 | 13 | 0 |
| 1989 | 9 | 0 |
| 1990 | 4 | 0 |
| 1991 | 14 | 0 |
| 1992 | 8 | 0 |
| 1993 | 13 | 0 |
| 1994 | 16 | 0 |
| 1995 | 14 | 0 |
| 1996 | 13 | 0 |
| 1997 | 13 | 0 |
| 1998 | 18 | 0 |
| 1999 | 21 | 0 |
| 2000 | 21 | 0 |
| 2001 | 37 | 5 |
| 2002 | 20 | 20 |
| 2003 | 25 | 32 |
| 2004 | 28 | 25 |
| 2005 | 21 | 30 |
| 2006 | 23 | 24 |
| 2007 | 17 | 24 |
| 2008 | 20 | 18 |
| 2009 | 13 | 15 |
| 2010 | 10 | 14 |
| 2011 | 17 | 16 |
| 2012 | 7 | 11 |
| 2013 | 13 | 15 |
| 2014 | 9 | 11 |
| 2015 | 8 | 20 |
| 2016 | 15 | 14 |
| 2017 | 10 | 17 |
| 2018 | 13 | 15 |
| 2019 | 16 | 18 |
| 2020 | 20 | 18 |
| 2021 | 16 | 17 |
| 2022 | 10 | 18 |
| 2023 | 14 | 18 |
| 2024 | 15 | 23 |
| 2025 | 23 | 13 |
| 2026 | 14 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic power steering system25 Aug 2026US 12,715,501 B2Hydac New Technologies GmbH
- Temperature regulation system for vehicle hydraulic system25 Aug 2026US 12,716,434 B2Oshkosh Corporation
- Hydraulic drive apparatus21 Jul 2026US 12,687,182 B2Kawasaki Jukogyo Kabushiki Kaisha
- Pneumatic system flow balancing architecture and method23 Jun 2026US 12,663,028 B2The Boeing Company
- Energy storage and reutilization for a single-rod electro-hydrostatic actuator9 Jun 2026US 12,650,138 B2University of Manitoba
- Integrated Electrohydraulic Actuator30 Jul 2026US 2026/0218734 A1Parker-Hannifin Corporation
- Turbo engine including a system to control pitch of a propeller blade4 Jun 2026US 2026/0153033 A1General Electric Company
- Compressed-air supply unit, compressed-air supply system, vehicle and operating method14 May 2026US 2026/0131760 A1Zf Cv Systems Europe BV
- Hydraulic drive apparatus22 Jan 2026US 2026/0022713 A1Kawasaki Jukogyo Kabushiki Kaisha
- Hydraulic drive apparatus1 Jan 2026US 2026/0002342 A1
Most cited
By later US patents
- Pneumatically operated mechanism1,103US 6,050,172 AEmhart Glass S. A. · 2000
- Enhanced computer optimized adaptive suspension system and method196US 6,502,837 B1Kenmar Company Trust · 2003
- Enhanced computer optimized adaptive suspension system and method172US 7,076,351 B2Great Northern Technologies, LLC · 2006
- Automotive hydraulic system and method for driving a hydraulic accessory in parallel with a power steering unit108US 6,073,536 A2000
- Systems and methods for energy storage and recovery using compressed gas96US 7,832,207 B2SustainX, Inc. · 2010