B66B 23/22
Balustrades
B66B23/22 (Balustrades) appears on 222 US grants and 158 published applications in this corpus.
Search patents in B66B- Granted patents
- 222
- Published applications
- 158
- Assignees
- 56
- Inventors
- 407
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 7 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 4 |
| 2003 | 3 | 1 |
| 2004 | 3 | 4 |
| 2005 | 2 | 6 |
| 2006 | 5 | 3 |
| 2007 | 4 | 6 |
| 2008 | 4 | 9 |
| 2009 | 6 | 13 |
| 2010 | 8 | 11 |
| 2011 | 5 | 13 |
| 2012 | 8 | 4 |
| 2013 | 6 | 4 |
| 2014 | 6 | 4 |
| 2015 | 8 | 11 |
| 2016 | 5 | 5 |
| 2017 | 7 | 7 |
| 2018 | 9 | 7 |
| 2019 | 7 | 9 |
| 2020 | 3 | 5 |
| 2021 | 9 | 9 |
| 2022 | 4 | 4 |
| 2023 | 3 | 8 |
| 2024 | 6 | 6 |
| 2025 | 3 | 3 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fire-resistant synthetic tension members15 Sep 2026US 12,735,299 B2Otis Elevator Company
- Handrail systems for moving walkways11 Aug 2026US 12,703,607 B2Beltways Inc.
- Automatic conveyor device11 Aug 2026US 12,703,608 B2Otis Elevator Company
- Seat systems for moving walkways21 Apr 2026US 12,606,420 B2Beltways Inc.
- Handrail and method of manufacturing a handrail10 Mar 2026US 12,570,503 B2Semperit Aktiengesellschaft Holding
- Seat systems for moving walkways30 Jul 2026US 2026/0217497 A1Beltways Inc.
- Conveyance system with moving support surfaces9 Apr 2026US 2026/0097930 A1Beltways Inc.
- Roller arrangement for a handrail guide profile of an escalator or a moving walkway25 Dec 2025US 2025/0389297 A1Inventio AG
- Handrail for an escalator or a moving walkway17 Apr 2025US 2025/0122051 A1Inventio AG
- Automatic conveyor device20 Feb 2025US 2025/0059003 A1Otis Elevator Company
Most cited
By later US patents
- Clamping insert73US 3,981,118 AThe Goodyear Tire & Rubber Company · 1976
- Transportation apparatus43US 4,159,758 AWestinghouse Electric Corp. · 1979
- Passenger conveyor and moving handrail for passenger conveyor and manufacturing method therefor37US 5,160,009 AHitachi Cable, Ltd. · 1992
- Composite handrail construction37US 6,237,740 B12001
- Abrasion resistant polyurethane article having a high rolling coefficient of friction33US 4,134,883 AWestinghouse Electric Corp. · 1979