B66B 13/00
Doors, gates, or other apparatus controlling access to, or exit from, cages
Official title: Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05)
B66B13/00 (Doors, gates, or other apparatus controlling access to, or exit from, cages) appears on 986 US grants and 933 published applications in this corpus.
Search patents in B66B- Granted patents
- 986
- Published applications
- 933
- Assignees
- 196
- Inventors
- 1,630
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 9 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 10 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 10 | 0 |
| 1989 | 7 | 0 |
| 1990 | 13 | 0 |
| 1991 | 8 | 0 |
| 1992 | 22 | 0 |
| 1993 | 13 | 0 |
| 1994 | 12 | 0 |
| 1995 | 20 | 0 |
| 1996 | 22 | 0 |
| 1997 | 28 | 0 |
| 1998 | 29 | 0 |
| 1999 | 30 | 0 |
| 2000 | 10 | 0 |
| 2001 | 10 | 6 |
| 2002 | 17 | 11 |
| 2003 | 16 | 12 |
| 2004 | 7 | 27 |
| 2005 | 10 | 22 |
| 2006 | 20 | 28 |
| 2007 | 16 | 23 |
| 2008 | 18 | 33 |
| 2009 | 16 | 18 |
| 2010 | 16 | 20 |
| 2011 | 15 | 40 |
| 2012 | 17 | 40 |
| 2013 | 21 | 27 |
| 2014 | 30 | 24 |
| 2015 | 26 | 31 |
| 2016 | 19 | 35 |
| 2017 | 41 | 47 |
| 2018 | 35 | 69 |
| 2019 | 34 | 76 |
| 2020 | 40 | 79 |
| 2021 | 46 | 47 |
| 2022 | 58 | 41 |
| 2023 | 56 | 56 |
| 2024 | 33 | 36 |
| 2025 | 34 | 48 |
| 2026 | 40 | 37 |
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
- Elevator door enforcer6 Oct 2026US 12,753,049 B2Ashby Elevator Safety Products, LLC
- Hoistway mechanics of panoramic vacuum elevator29 Sep 2026US 12,747,136 B2Blissera Corp.
- Car of elevator, and elevator29 Sep 2026US 12,747,137 B2Fujitec Co., Ltd.
- 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
- Vertical reciprocating conveyor24 Sep 2026US 2026/0285644 A1Multilift, Inc.
- Elevator communication system3 Sep 2026US 2026/0257886 A1Kone Corporation
- 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
Most cited
By later US patents
- Guide bar for an elevator door121US 5,174,675 AInventio AG · 1992
- Elevator hatch door monitoring system102US 5,644,111 ANew York City Housing Authority · 1997
- Self correcting infrared intrusion detection system88US 5,149,921 AInnovation Industries, Inc. · 1992
- Proximity detector79US 4,910,464 AFormula Systems Limited · 1990
- Doorway safety device77US 4,029,176 A1977