F15B 2211/863
The abnormal condition being a hydraulic or pneumatic failure
Official title: the abnormal condition being a hydraulic or pneumatic failure
F15B2211/863 (The abnormal condition being a hydraulic or pneumatic failure) appears on 325 US grants and 379 published applications in this corpus.
Search patents in F15B- Granted patents
- 325
- Published applications
- 379
- Assignees
- 218
- Inventors
- 816
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 4 |
| 2003 | 1 | 1 |
| 2004 | 3 | 2 |
| 2005 | 1 | 3 |
| 2006 | 2 | 4 |
| 2007 | 3 | 5 |
| 2008 | 3 | 9 |
| 2009 | 3 | 5 |
| 2010 | 4 | 5 |
| 2011 | 6 | 6 |
| 2012 | 4 | 4 |
| 2013 | 4 | 5 |
| 2014 | 5 | 22 |
| 2015 | 8 | 14 |
| 2016 | 14 | 15 |
| 2017 | 14 | 11 |
| 2018 | 13 | 27 |
| 2019 | 20 | 34 |
| 2020 | 22 | 36 |
| 2021 | 30 | 40 |
| 2022 | 33 | 35 |
| 2023 | 36 | 34 |
| 2024 | 31 | 26 |
| 2025 | 35 | 18 |
| 2026 | 10 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydraulic power steering system25 Aug 2026US 12,715,501 B2Hydac New Technologies GmbH
- Hydraulic cylinder monitoring11 Aug 2026US 12,704,137 B2The Heil Co.
- Protection for a circuit for controlling the orientation of propeller blades of an aircraft engine7 Jul 2026US 12,674,475 B2Safran Aircraft Engines
- Hydraulic control system and method with electro-proportional pressure valve and integral check5 May 2026US 12,618,424 B2HydraForce, Inc.
- Stability and control augmentation system actuator10 Mar 2026US 12,570,393 B2Microtecnica S.R.L.
- Hauling Vehicle27 Aug 2026US 2026/0249901 A1Hitachi Construction Machinery Co., Ltd.
- Transport vehicle20 Aug 2026US 2026/0241846 A1Hitachi Construction Machinery Co., Ltd.
- Leakage cause discrimination system and leakage cause discrimination method20 Aug 2026US 2026/0243281 A1KYB Corporation
- Hydraulic Device with a Status Display16 Jul 2026US 2026/0201913 A1Robert Bosch GmbH
- Flow Analysis-Based Cylinder Monitoring Apparatus and Method16 Jul 2026US 2026/0201914 A1LG Energy Solution, Ltd.
Most cited
By later US patents
- Fail-safe actuation system926US 9,239,064 B2Moog Inc. · 2016
- Hydraulic valve assembly with a pressure compensated directional spool valve and a regeneration shunt valve41US 7,487,707 B2HUSCO International, Inc. · 2009
- Flow sensing auxiliary pump by-pass valve39US 4,116,577 ANational Machine Company · 1978
- Apparatus and method for actuating arms36US 6,702,010 B2Computalog U.S.A., Inc. · 2004
- Apparatus for diagnosing failure of hydraulic pump for work machine35US 6,055,851 AHitachi Construction Machinery Co., Ltd. · 2000