B66D 5/30
Electrical
Official title: electrical
B66D5/30 (Electrical) appears on 129 US grants and 144 published applications in this corpus.
Search patents in B66D- Granted patents
- 129
- Published applications
- 144
- Assignees
- 57
- Inventors
- 332
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 4 |
| 2006 | 3 | 1 |
| 2007 | 1 | 5 |
| 2008 | 3 | 6 |
| 2009 | 2 | 6 |
| 2010 | 5 | 6 |
| 2011 | 5 | 8 |
| 2012 | 5 | 8 |
| 2013 | 2 | 4 |
| 2014 | 5 | 5 |
| 2015 | 5 | 10 |
| 2016 | 8 | 8 |
| 2017 | 7 | 15 |
| 2018 | 12 | 7 |
| 2019 | 11 | 4 |
| 2020 | 3 | 10 |
| 2021 | 7 | 7 |
| 2022 | 4 | 5 |
| 2023 | 5 | 5 |
| 2024 | 5 | 2 |
| 2025 | 1 | 2 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hoist system and process implementing an emergency stopping brake2 Jun 2026US 12,643,775 B2Breeze-Eastern LLC
- Electromagnetic brake24 Mar 2026US 12,584,530 B2Konecranes Global Corporation
- Brake static plate assembly, brake and elevator system10 Mar 2026US 12,570,498 B2Otis Elevator Company
- Brake device for elevator system and a test method thereof16 Dec 2025US 12,497,266 B2Otis Elevator Company
- Electromagnetic brake configured to slow deceleration rate of passenger conveyer during braking8 Oct 2024US 12,110,207 B2Otis Elevator Company
- Brake wear detection30 Jul 2026US 2026/0217494 A1Otis Elevator Company
- Disc Brake for a Hoist, Combining a Positive Brake and a Negative Brake25 Jun 2026US 2026/0177121 A1Stromag France SAS
- Gearless elevator drive system and elevator system comprising a gearless elevator drive system30 Apr 2026US 2026/0116706 A1Otis Elevator Company
- Drawworks Hydraulic Brake Performance Assessment System30 Apr 2026US 2026/0116713 A1
- Multiple brake hoist for overhead crane19 Feb 2026US 2026/0048967 A1Mazzella Lifting Texhnologies, Inc.
Most cited
By later US patents
- Control system for drawworks operations74US 6,029,951 AVarco International, Inc. · 2000
- Apparatus for monitoring elevator brakes41US 5,419,415 AInventio AG · 1995
- Electromagnetic disc brake for elevator lifting apparatus35US 5,154,261 AHitachi, Ltd. · 1992
- Cable drum safety brake27US 4,177,973 AEderer Incorporated · 1979
- Disk brake for elevator27US 5,101,939 AOtis Elevator Company · 1992