F15B 19/00
Testing
Official title: Testing; {Calibrating; Fault detection or monitoring; Simulation or modelling of} fluid-pressure systems or apparatus not otherwise provided for
F15B19/00 (Testing) appears on 788 US grants and 971 published applications in this corpus.
Search patents in F15B- Granted patents
- 788
- Published applications
- 971
- Assignees
- 462
- Inventors
- 2,070
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 4 |
| 2002 | 13 | 9 |
| 2003 | 10 | 8 |
| 2004 | 11 | 23 |
| 2005 | 12 | 14 |
| 2006 | 15 | 11 |
| 2007 | 15 | 16 |
| 2008 | 6 | 14 |
| 2009 | 9 | 15 |
| 2010 | 5 | 24 |
| 2011 | 14 | 16 |
| 2012 | 15 | 14 |
| 2013 | 17 | 28 |
| 2014 | 13 | 34 |
| 2015 | 14 | 35 |
| 2016 | 24 | 39 |
| 2017 | 34 | 46 |
| 2018 | 34 | 71 |
| 2019 | 65 | 61 |
| 2020 | 65 | 79 |
| 2021 | 45 | 69 |
| 2022 | 73 | 62 |
| 2023 | 59 | 64 |
| 2024 | 59 | 77 |
| 2025 | 61 | 82 |
| 2026 | 41 | 56 |
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.
- Foreign object recognition system6 Oct 2026US 12,755,537 B2Komatsu Ltd.
- Distribution network event correlation and localization29 Sep 2026US 12,747,744 B2Itron, Inc.
- Auto-compensation-type guide device for moving coil of large-scale vibration table and operation method thereof29 Sep 2026US 12,747,783 B2China University of Mining and Technology
- Determination apparatus, mobile object, computer-readable storage medium, and determination method15 Sep 2026US 12,736,070 B2Honda Motor Co., Ltd.
- Work Machine8 Oct 2026US 2026/0308879 A1Hitachi Construction Machinery Co., Ltd.
- Method for Detecting Cavitation and/or a Bubbling-in or Inflow of Air within a Hydraulic System8 Oct 2026US 2026/0309158 A1KSB SE & Co. KGaA
- Hydraulic System, Work Vehicle, Control Method, and Computer Program1 Oct 2026US 2026/0297901 A1Kubota Corporation
- Hydraulic system and method for controlling hydraulic system1 Oct 2026US 2026/0298215 A1Sumitomo Precision Products Co., Ltd.
- Method for operating a hydrodynamic compression tool and hydrodynamic compression tool24 Sep 2026US 2026/0284848 A1Cembre S.p.A.
Most cited
By later US patents
- Portable instrument to test pressure/flow of ventricular shunt valves95US 4,598,579 ACordis Corporation · 1986
- Apparatus for and method of testing hydraulic/pneumatic apparatus using computer controlled test equipment84US 5,337,262 AHR Textron, Inc. · 1994
- Valve positioner system60US 6,272,401 B1Dresser Industries, Inc. · 2001
- Valve positioner system44US 6,453,261 B2Dresser, Inc. · 2002
- Calibration of a command device in control system40US 5,918,195 ACase Corporation · 1999