F15B 21/001
Servomotor systems with fluidic control
Official title: {Servomotor systems with fluidic control}
F15B21/001 (Servomotor systems with fluidic control) appears on 37 US grants and 38 published applications in this corpus.
Search patents in F15B- Granted patents
- 37
- Published applications
- 38
- Assignees
- 38
- Inventors
- 118
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 3 |
| 2015 | 0 | 6 |
| 2016 | 3 | 2 |
| 2017 | 6 | 1 |
| 2018 | 1 | 5 |
| 2019 | 3 | 3 |
| 2020 | 5 | 4 |
| 2021 | 3 | 3 |
| 2022 | 5 | 1 |
| 2023 | 0 | 1 |
| 2024 | 2 | 2 |
| 2025 | 0 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods of robust electrohydraulic pressure control with distributed damping19 May 2026US 12,631,265 B2Sunstream Scientific, Inc.
- Method and systems for controlling fluid temperature in a hydraulic system of an aircraft powered by an HPP10 Feb 2026US 12,546,341 B2Airbus Operations GmbH
- Hydraulic system26 Nov 2024US 12,152,611 B2Hd Hyundai Infracore Co., Ltd.
- Working fluid supply system16 Jul 2024US 12,038,001 B2KYB Corporation
- System and method including a fluidic actuator and a pressurized fluid provision device27 Sep 2022US 11,454,261 B2Festo AG & Co.
- Methods of robust electrohydraulic pressure control with distributed damping17 Sep 2026US 2026/0276103 A1Sunstream Scientific, Inc.
- Hydraulic control device, hydraulic circuit control method, and hydraulic device29 Jan 2026US 2026/0029003 A1Kubota Corporation
- Hydraulic cylinder and system with pressure intensification27 Nov 2025US 2025/0361882 A1Doben Limited
- Hydraulic system for working machine, and working machine9 Oct 2025US 2025/0314044 A1Kubota Corporation
- Method and systems for controlling fluid temperature in a hydraulic system of an aircraft powered by an hpp3 Apr 2025US 2025/0109756 A1Airbus Operations GmbH
Most cited
By later US patents
- Sequential remote control plug release system26US 5,040,603 AHalliburton Company · 1991
- Hydraulic circuit13US 5,819,536 AApplied Power Inc. · 1998
- Pressure operated control installation11US 4,531,706 ADaimler-Benz Aktiengesellschaft · 1985
- Automatic transmission for hybrid vehicle11US 8,784,249 B2Aisin Aw Co., Ltd. · 2014
- Predictively adjustable hydraulic pressure rails11US 9,849,926 B2Boston Dynamics, Inc. · 2017