B66B 13/308
Details of seals and joints
Official title: {Details of seals and joints}
B66B13/308 (Details of seals and joints) appears on 27 US grants and 28 published applications in this corpus.
Search patents in B66B- Granted patents
- 27
- Published applications
- 28
- Assignees
- 14
- Inventors
- 54
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 4 |
| 2005 | 1 | 2 |
| 2006 | 1 | 3 |
| 2007 | 2 | 3 |
| 2008 | 0 | 1 |
| 2009 | 3 | 2 |
| 2010 | 0 | 1 |
| 2011 | 3 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 0 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Door seal for an elevator car17 Feb 2026US 12,552,642 B2Inventio AG
- Elevator system with cabin divider3 Feb 2026US 12,540,053 B2Otis Elevator Company
- Elevator door device13 Jan 2026US 12,522,474 B2Fujitec Co., Ltd.
- Elevator door astragal17 Sep 2024US 12,091,283 B2Otis Elevator Company
- Lift car for a lift installation and method for opening and closing a door opening24 May 2022US 11,339,027 B2TK Elevator Innovation and Operations GmbH
- Door seal for an elevator car5 Jun 2025US 2025/0178869 A1Inventio AG
- Elevator Door Device13 Feb 2025US 2025/0051137 A1Fujitec Co., Ltd.
- Elevator door arrangement and method21 Nov 2024US 2024/0383726 A1Kone Corporation
- Elevator system with cabin divider12 Oct 2023US 2023/0322523 A1Otis Elevator Company
- Elevator door astragal23 Mar 2023US 2023/0093391 A1Otis Elevator Company
Most cited
By later US patents
- Elevator system including an elevator car having door operated sealing devices adjacent door opening27US 4,058,191 AWestinghouse Electric Corp. · 1977
- Multiple level building with elevator hoistway seal structure23US 5,836,424 A1998
- Hoistway door seal structure22US 5,899,303 A1999
- Acoustical seal for elevator car doors19US 5,083,639 AInventio AG · 1992
- Elevator noise minimizer14US 5,131,504 AOtis Elevator Company · 1992