F15B 2211/32
Characterised by the type of actuation
Official title: characterised by the type of actuation
F15B2211/32 (Characterised by the type of actuation) appears on 1,746 US grants and 1,405 published applications in this corpus.
Search patents in F15B- Granted patents
- 1,746
- Published applications
- 1,405
- Assignees
- 650
- Inventors
- 2,995
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 29 | 0 |
| 1977 | 19 | 0 |
| 1978 | 15 | 0 |
| 1979 | 14 | 0 |
| 1980 | 16 | 0 |
| 1981 | 14 | 0 |
| 1982 | 14 | 0 |
| 1983 | 17 | 0 |
| 1984 | 10 | 0 |
| 1985 | 14 | 0 |
| 1986 | 16 | 0 |
| 1987 | 18 | 0 |
| 1988 | 16 | 0 |
| 1989 | 11 | 0 |
| 1990 | 14 | 0 |
| 1991 | 22 | 0 |
| 1992 | 22 | 0 |
| 1993 | 15 | 0 |
| 1994 | 25 | 0 |
| 1995 | 20 | 0 |
| 1996 | 17 | 0 |
| 1997 | 14 | 0 |
| 1998 | 26 | 0 |
| 1999 | 23 | 0 |
| 2000 | 29 | 0 |
| 2001 | 61 | 8 |
| 2002 | 42 | 33 |
| 2003 | 34 | 50 |
| 2004 | 48 | 54 |
| 2005 | 40 | 39 |
| 2006 | 28 | 40 |
| 2007 | 32 | 43 |
| 2008 | 26 | 44 |
| 2009 | 32 | 46 |
| 2010 | 27 | 37 |
| 2011 | 35 | 33 |
| 2012 | 20 | 20 |
| 2013 | 27 | 33 |
| 2014 | 27 | 38 |
| 2015 | 27 | 50 |
| 2016 | 38 | 36 |
| 2017 | 48 | 48 |
| 2018 | 37 | 57 |
| 2019 | 62 | 82 |
| 2020 | 86 | 117 |
| 2021 | 102 | 98 |
| 2022 | 88 | 83 |
| 2023 | 91 | 92 |
| 2024 | 86 | 102 |
| 2025 | 92 | 85 |
| 2026 | 60 | 37 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Construction machine6 Oct 2026US 12,753,569 B2Hitachi Construction Machinery Co., Ltd.
- 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
- Variable dither control system for a fluid actuator25 Aug 2026US 12,716,516 B2Hamilton Sundstrand Corporation
- Hauling Vehicle27 Aug 2026US 2026/0249901 A1Hitachi Construction Machinery Co., Ltd.
- Transport vehicle20 Aug 2026US 2026/0241846 A1Hitachi Construction Machinery Co., Ltd.
- Hydraulic system management method for machine control13 Aug 2026US 2026/0234895 A1Deere & Company
- Work Machine13 Aug 2026US 2026/0234907 A1Hitachi Construction Machinery Co., Ltd.
- Load dampening system13 Aug 2026US 2026/0235142 A1J. C. Bamford Excavators Limited
Most cited
By later US patents
- Pneumatically operated mechanism1,103US 6,050,172 AEmhart Glass S. A. · 2000
- Fail-safe actuation system926US 9,239,064 B2Moog Inc. · 2016
- 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
- Hydraulic circuit and control system therefor115US 5,138,838 ACaterpillar Inc. · 1992