F15B 11/04
For controlling the speed
Official title: for controlling the speed (F15B11/024 takes precedence)
F15B11/04 (For controlling the speed) appears on 1,077 US grants and 888 published applications in this corpus.
Search patents in F15B- Granted patents
- 1,077
- Published applications
- 888
- Assignees
- 444
- Inventors
- 1,848
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 9 | 0 |
| 1978 | 10 | 0 |
| 1979 | 12 | 0 |
| 1980 | 9 | 0 |
| 1981 | 11 | 0 |
| 1982 | 20 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 9 | 0 |
| 1987 | 9 | 0 |
| 1988 | 13 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 11 | 0 |
| 1992 | 11 | 0 |
| 1993 | 6 | 0 |
| 1994 | 12 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 15 | 0 |
| 1999 | 20 | 0 |
| 2000 | 23 | 0 |
| 2001 | 30 | 2 |
| 2002 | 17 | 14 |
| 2003 | 19 | 33 |
| 2004 | 22 | 27 |
| 2005 | 20 | 33 |
| 2006 | 23 | 38 |
| 2007 | 32 | 26 |
| 2008 | 22 | 33 |
| 2009 | 16 | 27 |
| 2010 | 15 | 23 |
| 2011 | 22 | 18 |
| 2012 | 12 | 23 |
| 2013 | 25 | 32 |
| 2014 | 22 | 32 |
| 2015 | 19 | 43 |
| 2016 | 35 | 29 |
| 2017 | 41 | 30 |
| 2018 | 25 | 54 |
| 2019 | 52 | 54 |
| 2020 | 64 | 76 |
| 2021 | 70 | 49 |
| 2022 | 43 | 49 |
| 2023 | 34 | 40 |
| 2024 | 43 | 48 |
| 2025 | 59 | 38 |
| 2026 | 32 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F15B 11/042By means in the feed line388
- F15B 11/044By means in the return line362
- F15B 11/05Specially adapted to maintain constant speed237
- F15B 11/046Depending on the position of the working member122
- F15B 11/0406During starting or stopping60
- F15B 11/0413In one direction only, with no control in the reverse direction51
Recent patents
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- Method and system for a flow-isolated valve arrangement and a three-chamber cylinder hydraulic architecture1 Sep 2026US 12,723,603 B2Purdue Research Foundation
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- Hydraulic distributor with pressure compensator for directional valves18 Aug 2026US 12,710,062 B2Walvoil S.P.A.
- Hybrid architecture for smart power management on off-highway machines18 Jun 2026US 2026/0168211 A1Deere & Company
- Bulldozing hydraulic system with bulldozing blade floating function and excavator11 Jun 2026US 2026/0160045 A1Xuzhou XCMG Excavator Machinery Co., Ltd.
- Asphalt finisher4 Jun 2026US 2026/0152905 A1Sumitomo Construction Machinery Co., Ltd.
- Pressure compensation valve and hydraulic control system28 May 2026US 2026/0145919 A1Zhejiang Senstren Technology Co., LTD
- Swing deceleration control system16 Apr 2026US 2026/0103871 A1Deere & Company
Most cited
By later US patents
- Pneumatically operated mechanism1,103US 6,050,172 AEmhart Glass S. A. · 2000
- Linear servoactuator with integrated transformer position sensor158US 4,628,499 AScientific-Atlanta, Inc. · 1986
- Buckled actuator with enhanced restoring force120US 5,901,939 AHoneywell Inc. · 1999
- Hydraulic circuit and control system therefor115US 5,138,838 ACaterpillar Inc. · 1992
- Fluid power distribution and control system111US 10,161,423 B2Sauer-Danfoss ApS · 2018