B66B 13/14
Control systems or devices
B66B13/14 (Control systems or devices) appears on 306 US grants and 328 published applications in this corpus.
Search patents in B66B- Granted patents
- 306
- Published applications
- 328
- Assignees
- 77
- Inventors
- 677
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 14 | 0 |
| 1999 | 11 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 5 | 2 |
| 2003 | 3 | 2 |
| 2004 | 1 | 4 |
| 2005 | 3 | 2 |
| 2006 | 4 | 9 |
| 2007 | 4 | 3 |
| 2008 | 4 | 16 |
| 2009 | 5 | 2 |
| 2010 | 3 | 3 |
| 2011 | 5 | 8 |
| 2012 | 4 | 13 |
| 2013 | 3 | 8 |
| 2014 | 5 | 4 |
| 2015 | 9 | 6 |
| 2016 | 5 | 14 |
| 2017 | 12 | 15 |
| 2018 | 8 | 29 |
| 2019 | 14 | 36 |
| 2020 | 11 | 35 |
| 2021 | 24 | 23 |
| 2022 | 30 | 20 |
| 2023 | 25 | 24 |
| 2024 | 8 | 14 |
| 2025 | 13 | 20 |
| 2026 | 16 | 15 |
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 systems28 Jul 2026US 12,692,129 B2Otis Elevator Company
- Elevator door control device14 Jul 2026US 12,679,697 B2Mitsubishi Electric Corporation
- Automatically controlled door assembly as an elevator level door of an elevator system16 Jun 2026US 12,654,992 B2Inventio AG
- 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
- Car door interlock13 Aug 2026US 2026/0233975 A1Otis Elevator Company
- Door control unit for an elevator system, method of maintaining an elevator system, and maintenance device for maintaining an elevator system16 Jul 2026US 2026/0200697 A1Inventio AG
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
- Automatic door safety system51US 4,914,859 ALanson Electronics, Inc. · 1990
- Monitoring of elevator door reversal data43US 5,817,993 AOtis Elevator Company · 1998