F15B 2211/857
Monitoring of fluid pressure systems
F15B2211/857 (Monitoring of fluid pressure systems) appears on 151 US grants and 201 published applications in this corpus.
Search patents in F15B- Granted patents
- 151
- Published applications
- 201
- Assignees
- 129
- Inventors
- 424
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 4 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 3 |
| 2012 | 0 | 1 |
| 2013 | 2 | 4 |
| 2014 | 0 | 5 |
| 2015 | 4 | 6 |
| 2016 | 1 | 7 |
| 2017 | 7 | 13 |
| 2018 | 5 | 25 |
| 2019 | 17 | 19 |
| 2020 | 18 | 13 |
| 2021 | 18 | 16 |
| 2022 | 14 | 19 |
| 2023 | 8 | 16 |
| 2024 | 14 | 20 |
| 2025 | 18 | 20 |
| 2026 | 10 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for real-time hydraulic cylinder drift monitoring25 Aug 2026US 12,716,432 B2Caterpillar Inc.
- Method for providing at least one item of information relating to a hydraulic system25 Aug 2026US 12,716,433 B2KSB SE & Co. KGaA
- Hydraulic cylinder monitoring11 Aug 2026US 12,704,137 B2The Heil Co.
- Systems and methods for synchronized valve actuation28 Jul 2026US 12,693,691 B2Swagelok Company
- Hydraulic tools, systems for tools, and methods of use or control of same30 Jun 2026US 12,669,139 B2Huskie Tools, Inc.
- Contact estimation method, contact estimation program, and contact estimation device30 Jul 2026US 2026/0216889 A1Bridgestone Corporation
- Method for the detection of a position of an actuator element of a pneumatic actuator amid the use of a detection device, as well as a system of a pneumatic actuator and a detection device16 Jul 2026US 2026/0201912 A1Festo AG & Co.
- Operator group, especially for an operator vehicle25 Jun 2026US 2026/0176118 A1Manitou Italia S.R.L.
- Fluid level indicator for a hydraulic reservoir4 Jun 2026US 2026/0153103 A1Embraer S.A.
- Systems and methods for autonomous pressure relief valve testing23 Apr 2026US 2026/0110370 A1
Most cited
By later US patents
- Method for surveying the condition of a control valve, and a valve apparatus39US 6,131,609 ANeles Controls Oy · 2000
- Hydraulic system with a dynamic seal32US 9,651,067 B2Caterpillar Inc. · 2017
- Flow sensing and control apparatus25US 3,952,510 ACaterpillar Tractor Co. · 1976
- Method and apparatus for hydraulically controlling subsea equipment17US 4,407,183 AFMC Corporation · 1983
- Pressure sensor integrated into an electro-hydraulic control unit14US 6,374,679 B1Kelsey-Hayes Company · 2002