F16D 2121/22
For releasing a normally applied brake
Official title: for releasing a normally applied brake
F16D2121/22 (For releasing a normally applied brake) appears on 452 US grants and 341 published applications in this corpus.
Search patents in F16D- Granted patents
- 452
- Published applications
- 341
- Assignees
- 256
- Inventors
- 947
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 10 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 12 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 11 | 0 |
| 1998 | 10 | 0 |
| 1999 | 14 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 2 |
| 2002 | 10 | 4 |
| 2003 | 5 | 3 |
| 2004 | 6 | 4 |
| 2005 | 1 | 8 |
| 2006 | 9 | 8 |
| 2007 | 2 | 11 |
| 2008 | 3 | 13 |
| 2009 | 3 | 11 |
| 2010 | 7 | 24 |
| 2011 | 14 | 10 |
| 2012 | 13 | 11 |
| 2013 | 12 | 9 |
| 2014 | 11 | 8 |
| 2015 | 6 | 13 |
| 2016 | 6 | 8 |
| 2017 | 13 | 16 |
| 2018 | 13 | 14 |
| 2019 | 13 | 24 |
| 2020 | 15 | 36 |
| 2021 | 16 | 22 |
| 2022 | 21 | 18 |
| 2023 | 21 | 22 |
| 2024 | 21 | 15 |
| 2025 | 20 | 14 |
| 2026 | 9 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Brake control device and motor drive device29 Sep 2026US 12,747,766 B2Fanuc Corporation
- Surgical robot with secondary brake release for user actuation15 Sep 2026US 12,735,016 B2Auris Health, Inc.
- Scissor lift descent control systems and methods18 Aug 2026US 12,709,530 B2Oshkosh Corporation
- Electromagnetic brake24 Mar 2026US 12,584,530 B2Konecranes Global Corporation
- Brake device, drive unit, and industrial device17 Mar 2026US 12,577,992 B2ABB Schweiz AG
- Electromagnetic brake or clutch18 Jun 2026US 2026/0168546 A1Kendrion (Villingen) GmbH
- Electromagnetic excitation system, electromagnetic brake or clutch and method for producing an electromagnetic excitation system11 Jun 2026US 2026/0162863 A1Kendrion (Villingen) GmbH
- Cart-borne ultrasonic imaging system with improved locking device7 May 2026US 2026/0123914 A1Esaote S.p.A.
- Rotational encoder combined with angle limit braking mechanism23 Apr 2026US 2026/0110556 A1Viettel Group
- Anti-slip device for lawn mower, lawn mower, and lawn mower with multiple safety protections16 Apr 2026US 2026/0101850 A1Shenzhen Zongguan Innovation Co., Ltd.
Most cited
By later US patents
- Harmonic electric actuator111US 4,398,110 AWestinghouse Electric Corp. · 1983
- Motor saw brake92US 4,757,881 AAktiebolaget Electrolux · 1988
- Brake control for rotary electric tools81US 4,029,159 A1977
- Hand-held device56US 5,954,457 AHilti Aktiengesellschaft · 1999
- Caliper disk brake for steel mill cranes52US 6,186,287 B1Power Transmission Technology, Inc. · 2001