B66B 13/02
Door or gate operation
Official title: Door or gate operation (of general application E05F)
B66B13/02 (Door or gate operation) appears on 514 US grants and 476 published applications in this corpus.
Search patents in B66B- Granted patents
- 514
- Published applications
- 476
- Assignees
- 113
- Inventors
- 933
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 12 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 9 | 0 |
| 1996 | 15 | 0 |
| 1997 | 19 | 0 |
| 1998 | 21 | 0 |
| 1999 | 20 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 4 |
| 2002 | 7 | 3 |
| 2003 | 5 | 2 |
| 2004 | 2 | 7 |
| 2005 | 3 | 10 |
| 2006 | 8 | 14 |
| 2007 | 8 | 9 |
| 2008 | 6 | 22 |
| 2009 | 10 | 4 |
| 2010 | 5 | 8 |
| 2011 | 5 | 14 |
| 2012 | 8 | 24 |
| 2013 | 7 | 12 |
| 2014 | 10 | 7 |
| 2015 | 15 | 15 |
| 2016 | 10 | 20 |
| 2017 | 19 | 21 |
| 2018 | 14 | 32 |
| 2019 | 19 | 44 |
| 2020 | 15 | 53 |
| 2021 | 27 | 30 |
| 2022 | 40 | 24 |
| 2023 | 35 | 29 |
| 2024 | 14 | 19 |
| 2025 | 19 | 29 |
| 2026 | 21 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Landing-door switch circuit6 Oct 2026US 12,753,047 B2Mitsubishi Electric Corporation
- Elevator6 Oct 2026US 12,753,048 B2Inventio AG
- Car of elevator, and elevator29 Sep 2026US 12,747,137 B2Fujitec Co., Ltd.
- Hoistway module for forming a hoistway composed of stacked hoistway modules for an elevator installation18 Aug 2026US 12,709,519 B2
- Elevator systems28 Jul 2026US 12,692,129 B2Otis Elevator Company
- Safety locking device for a shaft door of an elevator and method for opening a shaft door of an elevator using a safety locking device1 Oct 2026US 2026/0296836 A1Inventio AG
- Elevator car door restrictor solenoid assembly and method27 Aug 2026US 2026/0250104 A1Argus Elevator LLC
- Evaluation of a condition of an automatic door drive belt13 Aug 2026US 2026/0233969 A1Kone Corporation
- Freight elevator pallet rack system13 Aug 2026US 2026/0233974 A1Otis Elevator Company
- Car door interlock13 Aug 2026US 2026/0233975 A1Otis Elevator Company
Most cited
By later US patents
- Elevator hatch door monitoring system102US 5,644,111 ANew York City Housing Authority · 1997
- Automatic door control system74US 4,563,625 AThe Stanley Works · 1986
- Double-drive automatic sliding door operator68US 5,711,112 AOtis Elevator Company · 1998
- Detection device having energy transmitters located at vertically spaced apart points along movable doors60US 4,794,248 AOtis Elevator Company · 1988
- Automatic door safety system51US 4,914,859 ALanson Electronics, Inc. · 1990