F16D 2500/51
Relating safety
F16D2500/51 (Relating safety) appears on 390 US grants and 319 published applications in this corpus.
Search patents in F16D- Granted patents
- 390
- Published applications
- 319
- Assignees
- 174
- Inventors
- 864
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 10 | 0 |
| 1992 | 5 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 19 | 0 |
| 2001 | 5 | 4 |
| 2002 | 14 | 14 |
| 2003 | 11 | 10 |
| 2004 | 10 | 10 |
| 2005 | 8 | 7 |
| 2006 | 6 | 18 |
| 2007 | 6 | 13 |
| 2008 | 9 | 15 |
| 2009 | 5 | 16 |
| 2010 | 12 | 18 |
| 2011 | 10 | 15 |
| 2012 | 18 | 16 |
| 2013 | 25 | 12 |
| 2014 | 13 | 20 |
| 2015 | 16 | 12 |
| 2016 | 13 | 19 |
| 2017 | 12 | 16 |
| 2018 | 12 | 15 |
| 2019 | 18 | 14 |
| 2020 | 15 | 16 |
| 2021 | 20 | 14 |
| 2022 | 13 | 8 |
| 2023 | 8 | 8 |
| 2024 | 9 | 3 |
| 2025 | 3 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16D 2500/5104Preventing failuresIndexing code142
- F16D 2500/5108Failure diagnosisIndexing code118
- F16D 2500/5114FailsafeIndexing code94
- F16D 2500/5102Detecting abnormal operationIndexing code75
- F16D 2500/5118MaintenanceIndexing code23
- F16D 2500/5116Manufacture, testing, calibrating, i.e. test or calibration of components during or soonIndexing code19
Recent patents
- Method for detecting a safe state of a valve of a hydraulic system17 Feb 2026US 12,552,340 B2Schaeffler Technologies AG & Co. KG
- Auxiliary propulsion apparatus for air vehicle22 Apr 2025US 12,280,890 B2Hyundai Motor Company
- Vehicle, method for controlling vehicle and controller for vehicle18 Feb 2025US 12,228,178 B2Kawasaki Motors, Ltd.
- Escrow clutch protection21 Jan 2025US 12,206,349 B2NCR Atleos Corporation
- Apparatus and method for controlling an electric machine for a vehicle26 Nov 2024US 12,152,641 B2Jaguar Land Rover Limited
- Multi-speed power tool with electronic clutch17 Sep 2026US 2026/0273715 A1Milwaukee Electric Tool Corporation
- Universal joint with oil-bath clutch torque limiter and drive shaft comprising said joint23 Jul 2026US 2026/0210410 A1Bondioli & Pavesi S.P.A.
- Method for detecting a safe state of a valve of a hydraulic system30 Oct 2025US 2025/0333014 A1Schaeffler Technologies AG & Co. KG
- Determining a clutch temperature of a vehicle clutch by means of a neural network30 Oct 2025US 2025/0334156 A1ZF Friedrichshafen AG
- Multi-speed power tool with electronic clutch21 Aug 2025US 2025/0262737 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Hydraulic circuit for automatic transmission1,004US 9,488,197 B2Hyundai Motor Company · 2016
- Device for sensing the engagement position of a clutch73US 4,340,133 AZahnradfabrik Friedrichshafen AG · 1982
- Electrical interlock safety control to prevent operation of mower during reverse travel52US 3,999,643 AAllis-Chalmers Corporation · 1976
- Connector for modular prefilled hydraulic control apparatus45US 4,991,627 AAutomotive Products plc · 1991
- Multiple-clutch device45US 6,523,657 B1Mannesmann Sachs AG · 2003