F15B 11/02
Systems essentially incorporating special features for controlling the speed or the actuating
Official title: Systems essentially incorporating special features for controlling the speed or the actuating force of an output member
F15B11/02 (Systems essentially incorporating special features for controlling the speed or the actuating) appears on 1,981 US grants and 1,621 published applications in this corpus.
Search patents in F15B- Granted patents
- 1,981
- Published applications
- 1,621
- Assignees
- 805
- Inventors
- 3,289
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 16 | 0 |
| 1978 | 15 | 0 |
| 1979 | 22 | 0 |
| 1980 | 17 | 0 |
| 1981 | 19 | 0 |
| 1982 | 24 | 0 |
| 1983 | 14 | 0 |
| 1984 | 12 | 0 |
| 1985 | 19 | 0 |
| 1986 | 15 | 0 |
| 1987 | 16 | 0 |
| 1988 | 23 | 0 |
| 1989 | 13 | 0 |
| 1990 | 13 | 0 |
| 1991 | 19 | 0 |
| 1992 | 16 | 0 |
| 1993 | 18 | 0 |
| 1994 | 25 | 0 |
| 1995 | 18 | 0 |
| 1996 | 18 | 0 |
| 1997 | 15 | 0 |
| 1998 | 42 | 0 |
| 1999 | 43 | 0 |
| 2000 | 37 | 0 |
| 2001 | 66 | 4 |
| 2002 | 47 | 40 |
| 2003 | 42 | 72 |
| 2004 | 62 | 57 |
| 2005 | 43 | 50 |
| 2006 | 38 | 54 |
| 2007 | 43 | 43 |
| 2008 | 31 | 44 |
| 2009 | 26 | 51 |
| 2010 | 29 | 40 |
| 2011 | 32 | 39 |
| 2012 | 24 | 38 |
| 2013 | 39 | 51 |
| 2014 | 38 | 63 |
| 2015 | 37 | 92 |
| 2016 | 56 | 73 |
| 2017 | 75 | 61 |
| 2018 | 61 | 96 |
| 2019 | 92 | 96 |
| 2020 | 112 | 119 |
| 2021 | 107 | 83 |
| 2022 | 75 | 96 |
| 2023 | 69 | 76 |
| 2024 | 77 | 78 |
| 2025 | 91 | 68 |
| 2026 | 58 | 37 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control method based on a four-chamber hydraulic cylinder6 Oct 2026US 12,753,780 B2Taiyuan University of Technology
- Hydraulic system for work machine, and work machine15 Sep 2026US RE51,031 E1Kubota Corporation
- Method and system for a flow-isolated valve arrangement and a three-chamber cylinder hydraulic architecture1 Sep 2026US 12,723,603 B2Purdue Research Foundation
- Construction machine25 Aug 2026US 12,716,203 B2Kobelco Construction Machinery Co., Ltd.
- Actuator assembly for a heavy construction machine25 Aug 2026US 12,716,429 B2Wipro Enterprises Pvt Ltd
- Work Machine8 Oct 2026US 2026/0308879 A1Hitachi Construction Machinery Co., Ltd.
- Hydraulic System with Reservoir Surge Energy Recovery and Inlet Flow Supplement for Surface Engaging Machinery17 Sep 2026US 2026/0271819 A1Parker-Hannifin Corporation
- Hydraulic mechanical pumping unit with a ventilation duct for electronic components and a damping filtration system27 Aug 2026US 2026/0251138 A1
- Work vehicle13 Aug 2026US 2026/0234908 A1Kubota Corporation
- Hydraulic Isolation Cylinder-Based System6 Aug 2026US 2026/0226921 A1SRI Energy, Inc.
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
- Linear servoactuator with integrated transformer position sensor158US 4,628,499 AScientific-Atlanta, Inc. · 1986
- Force-controlled hydro-elastic actuator139US 6,494,039 B2Massachusetts Institute of Technology · 2002