F15B 9/14
Servomotors with follow-up action: with rotary servomotors
Official title: with rotary servomotors
F15B9/14 (Servomotors with follow-up action: with rotary servomotors) appears on 35 US grants and 22 published applications in this corpus.
Search patents in F15B- Granted patents
- 35
- Published applications
- 22
- Assignees
- 28
- Inventors
- 67
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 3 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 3 |
| 2015 | 1 | 0 |
| 2016 | 2 | 2 |
| 2017 | 2 | 0 |
| 2018 | 0 | 3 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
| 2023 | 3 | 2 |
| 2024 | 0 | 1 |
| 2025 | 4 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Hydraulic system, excavator, and control method of excavator14 Oct 2025US 12,442,160 B2Komatsu Ltd.
- Rotorcraft-assisted system and method for launching and retrieving a fixed-wing aircraft into and from free flight12 Aug 2025US 12,384,559 B2Hood Technology Corporation
- Inertial load dampening hydraulic system with persistent oil conditioning24 Jun 2025US 12,338,604 B1Deere & Company
- Servo-control system15 Apr 2025US 12,278,134 B2APPLIED Materials.Inc.
- Servo-control system28 Nov 2023US 11,830,760 B2APPLIED Materials.Inc.
- Hydraulic system, excavator, and control method of excavator18 Sep 2025US 2025/0290287 A1Komatsu Ltd.
- Servo-control system8 Feb 2024US 2024/0047263 A1APPLIED Materials.Inc.
- Rotorcraft-assisted system and method for launching and retrieving a fixed-wing aircraft into and from free flight30 Nov 2023US 2023/0382558 A1Hood Technology Corporation
- Servo-control system26 Jan 2023US 2023/0028135 A1APPLIED Materials.Inc.
- Servo control of a lift apparatus and methods of use thereof26 Aug 2021US 2021/0265194 A1APPLIED Materials.Inc.
Most cited
By later US patents
- Intermittent motion gear apparatus41US 4,352,299 AThe Bendix Corporation · 1982
- Precision servo control system for a pneumatic actuator30US 6,523,451 B1Tol-O-Matic, Inc. · 2003
- Precision servo control system for a pneumatic actuator15US 6,705,199 B2Tol-O-Matic, Inc. · 2004
- Hydraulic motor control system with rotating servo-valve14US 4,977,816 ABW Hydraulik GmbH · 1990
- High-flow direct-drive rotary servovalve11US 5,597,014 AMoog Inc. · 1997