F16D 2121/12
For releasing a normally applied brake, the type of actuator being irrelevant
Official title: for releasing a normally applied brake, the type of actuator being irrelevant or not provided for in groups F16D2121/04 - F16D2121/10
F16D2121/12 (For releasing a normally applied brake, the type of actuator being irrelevant) appears on 234 US grants and 132 published applications in this corpus.
Search patents in F16D- Granted patents
- 234
- Published applications
- 132
- Assignees
- 144
- Inventors
- 417
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 8 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 8 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 9 | 1 |
| 2002 | 15 | 5 |
| 2003 | 13 | 8 |
| 2004 | 4 | 6 |
| 2005 | 6 | 6 |
| 2006 | 8 | 9 |
| 2007 | 1 | 15 |
| 2008 | 5 | 12 |
| 2009 | 8 | 11 |
| 2010 | 6 | 17 |
| 2011 | 8 | 10 |
| 2012 | 10 | 4 |
| 2013 | 2 | 1 |
| 2014 | 10 | 2 |
| 2015 | 3 | 2 |
| 2016 | 2 | 2 |
| 2017 | 2 | 2 |
| 2018 | 3 | 3 |
| 2019 | 2 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 3 |
| 2023 | 2 | 2 |
| 2024 | 3 | 3 |
| 2025 | 3 | 5 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Hydrostatic radial piston unit13 Jan 2026US 12,523,201 B2Danfoss A/S
- Anti-vibration support for an external spring applied hydraulic release brake assembly9 Dec 2025US 12,492,729 B2Dana Italia S.R.L.
- Parking brake control for ride-on zero-turn work machines28 Jan 2025US 12,207,591 B1Yakta Inc.
- Hydrostatic Rotary Machine with Optimized Brake22 May 2025US 2025/0163978 A1Robert Bosch GmbH
- Radial Piston Machine with Multi-Disc Brake27 Mar 2025US 2025/0102031 A1Robert Bosch GmbH
- Parking Brake Control for Ride-On Zero-Turn Work Machines30 Jan 2025US 2025/0031612 A1Yakta Inc.
- Parking Brake Control for Ride-On Zero-Turn Work Machines30 Jan 2025US 2025/0033610 A1Yakita Inc.
- Brake system for a towing vehicle23 Jan 2025US 2025/0026324 A1ZF CV Systems Global GmbH
Most cited
By later US patents
- Rotating gantry of particle beam therapy system189US 7,372,053 B2Hitachi, Ltd. · 2008
- Vehicle drivetrain hydraulic coupling70US 5,310,388 AASHA Corporation · 1994
- Hydraulic coupling for vehicle drivetrain54US 5,595,214 AASHA Corporation · 1997
- Hydraulic coupling for vehicle drivetrain53US 5,536,215 AASHA Corporation · 1996
- Wet disc brake mechanism43US 5,050,710 ACaterpillar Inc. · 1991