F16D 51/32
With three or more brake shoes
Official title: with three or more brake shoes
F16D51/32 (With three or more brake shoes) appears on 19 US grants and 23 published applications in this corpus.
Search patents in F16D- Granted patents
- 19
- Published applications
- 23
- Assignees
- 18
- Inventors
- 37
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 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 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 3 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 4 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 3 | 3 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Clutch for preventing backdrive13 Jan 2026US 12,523,264 B2Hyundai Motor Company
- Monitoring health of safety brakes in auxiliary lift devices11 Jul 2023US 11,697,510 B2The Boeing Company
- Stair lift20 Apr 2021US 10,981,753 B2
- Gear protection subassembly30 Jun 2020US 10,697,507 B2Performance Gear Systems, Inc.
- Door operator having lock mechanism12 Feb 2019US 10,202,803 B2
- Rotary disk friction locking apparatus2 Jul 2026US 2026/0185571 A1
- Clutch for preventing backdrive21 Sep 2023US 2023/0296146 A1Hyundai Motor Company
- Monitoring health of safety brakes in auxiliary lift devices5 Aug 2021US 2021/0237906 A1The Boeing Company
- Stair lift25 Mar 2021US 2021/0087019 A1
- Door Operator Having Lock Mechanism25 Apr 2019US 2019/0119983 A1
Most cited
By later US patents
- Turbine engine windmilling brake33US 6,312,215 B1United Technologies Corporation · 2001
- Braking apparatus for blind14US 8,051,960 B2Kabushiki Kaisha Nichibei · 2011
- Apparatus for retaining a brake drum to a fastening bracket8US 6,793,045 B2Shimano Inc. · 2004
- Bike brake6US 6,290,028 B12001
- Drum brake including three brake shoes5US 4,700,816 ALucas Industries public limited company · 1987