F15B 13/00
Details of servomotor systems
Official title: Details of servomotor systems ({F15B1/04, F15B1/26, F15B3/00, F15B7/08, F15B11/02, F15B11/10,} F15B15/00 take precedence){; Valves for servomotor systems}
F15B13/00 (Details of servomotor systems) appears on 5,011 US grants and 3,778 published applications in this corpus.
Search patents in F15B- Granted patents
- 5,011
- Published applications
- 3,778
- Assignees
- 1,691
- Inventors
- 7,618
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 76 | 0 |
| 1977 | 57 | 0 |
| 1978 | 68 | 0 |
| 1979 | 52 | 0 |
| 1980 | 74 | 0 |
| 1981 | 67 | 0 |
| 1982 | 59 | 0 |
| 1983 | 39 | 0 |
| 1984 | 55 | 0 |
| 1985 | 78 | 0 |
| 1986 | 61 | 0 |
| 1987 | 60 | 0 |
| 1988 | 61 | 0 |
| 1989 | 63 | 0 |
| 1990 | 39 | 0 |
| 1991 | 64 | 0 |
| 1992 | 58 | 0 |
| 1993 | 62 | 0 |
| 1994 | 57 | 0 |
| 1995 | 63 | 0 |
| 1996 | 65 | 0 |
| 1997 | 68 | 0 |
| 1998 | 79 | 0 |
| 1999 | 95 | 0 |
| 2000 | 103 | 0 |
| 2001 | 114 | 32 |
| 2002 | 117 | 89 |
| 2003 | 91 | 104 |
| 2004 | 92 | 106 |
| 2005 | 98 | 95 |
| 2006 | 72 | 71 |
| 2007 | 60 | 86 |
| 2008 | 46 | 97 |
| 2009 | 38 | 98 |
| 2010 | 60 | 93 |
| 2011 | 66 | 71 |
| 2012 | 74 | 113 |
| 2013 | 96 | 157 |
| 2014 | 81 | 127 |
| 2015 | 113 | 193 |
| 2016 | 145 | 189 |
| 2017 | 165 | 230 |
| 2018 | 178 | 269 |
| 2019 | 263 | 258 |
| 2020 | 278 | 263 |
| 2021 | 241 | 204 |
| 2022 | 213 | 192 |
| 2023 | 178 | 210 |
| 2024 | 200 | 178 |
| 2025 | 184 | 154 |
| 2026 | 125 | 99 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F15B 13/02Fluid distribution or supply devices characterised by their adaptation to the control4,593
- F15B 13/01Locking-valves or other detent i.e. load-holding devices325
- F15B 2013/002Modular valves, i.e. consisting of an assembly of interchangeable componentsIndexing code186
- F15B 13/16Special measures for feedback94
- F15B 13/10Special arrangements for operating the actuated device with or without using fluid61
- F15B 2013/008Throttling member profilesIndexing code56
- F15B 13/14Special measures for giving the operating person a "feeling" of the response34
- F15B 13/12Special measures for increasing the sensitivity of the system7
Recent patents
- Systems, devices, and methods for a hydraulic robotic arm6 Oct 2026US 12,752,419 B2Sanctuary Cognitive Systems Corporation
- Vehicle suspension system with roll moment distribution control6 Oct 2026US 12,752,583 B2Advanced Suspension Technology LLC
- Jack with hydraulic lock6 Oct 2026US 12,753,053 B2Pacific Rim International, LLC
- Construction machine6 Oct 2026US 12,753,569 B2Hitachi Construction Machinery Co., Ltd.
- Valve assembly and mounting plate comprising a valve assembly6 Oct 2026US 12,753,850 B2Buerkert Werke GmbH
- Weld cap and plug welds for fluid delivery systems8 Oct 2026US 2026/0309168 A1Compart Systems Pte. Ltd.
- Hydraulic System8 Oct 2026US 2026/0309169 A1Caterpillar SARL
- Method for operating a hydraulic device8 Oct 2026US 2026/0309224 A1Schaeffler Technologies AG & Co. KG
- Hydraulic system for a refuse vehicle1 Oct 2026US 2026/0296342 A1Oshkosh Corporation
- Hydraulic system for a vehicle1 Oct 2026US 2026/0296861 A1Oshkosh Corporation
Most cited
By later US patents
- Magnetic position sensor for measuring linear displacement1,173US 6,670,806 B2Koninklijke Philips Electronics N. V. · 2003
- Hydraulic circuit for automatic transmission1,004US 9,488,197 B2Hyundai Motor Company · 2016
- Moving microdroplets561US 6,130,098 AThe Regents of the University of Michigan · 2000
- Kinesthetic feedback apparatus and method552US 5,396,266 ATechnical Research Associates, Inc. · 1995
- Microscale devices and reactions in microscale devices407US 6,057,149 AUniversity of Michigan · 2000