E06B 3/90
Revolving doors
Official title: Revolving doors; Cages or housings therefor (turnstiles E06B11/08)
E06B3/90 (Revolving doors) appears on 101 US grants and 71 published applications in this corpus.
Search patents in E06B- Granted patents
- 101
- Published applications
- 71
- Assignees
- 60
- Inventors
- 149
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 6 | 3 |
| 2003 | 3 | 5 |
| 2004 | 2 | 3 |
| 2005 | 2 | 4 |
| 2006 | 3 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 2 | 5 |
| 2015 | 2 | 1 |
| 2016 | 4 | 3 |
| 2017 | 1 | 1 |
| 2018 | 0 | 3 |
| 2019 | 3 | 1 |
| 2020 | 5 | 9 |
| 2021 | 2 | 4 |
| 2022 | 5 | 3 |
| 2023 | 2 | 5 |
| 2024 | 6 | 4 |
| 2025 | 1 | 5 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Revolving door and method for constructing a revolving door28 Jul 2026US 12,692,744 B2Dormakaba Deutschland GmbH
- Revolving door system16 Jun 2026US 12,655,673 B2Assa Abloy Entrance Systems AB
- Separation systems, tailgating and piggybacking detection devices, and related computer program products for controlling access to a restricted area and related methods24 Mar 2026US 12,586,432 B2Boon Edam B.V.
- Revolving door for providing a passage way through a building wall and a method of operating the revolving door5 Aug 2025US 12,378,813 B2Assa Abloy Entrance Systems AB
- Revolving door assembly31 Dec 2024US 12,180,768 B2Assa Abloy Entrance Systems AB
- Emergency opening structure for revolving door and revolving door assembly9 Oct 2025US 2025/0314112 A1Assa Abloy Entrance Systems AB
- Revolving door and method for constructing a revolving door21 Aug 2025US 2025/0263970 A1Dormakaba Deutschland GmbH
- 360-degree rotational cam hydraulic door closer for narrow frame door12 Jun 2025US 2025/0188784 A1Sun-Q Door Controls Limited
- A revolving door for providing a passage way through a building wall and a method of operating the revolving door27 Mar 2025US 2025/0101797 A1Assa Abloy Entrance Systems AB
- Revolving door system2 Jan 2025US 2025/0003281 A1Assa Abloy Entrance Systems AB
Most cited
By later US patents
- Furniture system115US 5,511,348 ASteelcase Inc. · 1996
- Furniture system88US 5,724,778 ASteelcase Inc. · 1998
- Furniture system61US 6,170,200 B2Steelcase Development Corporation · 2001
- Method of operating a door system and a door system operating by this method58US 6,084,367 A2000
- Apparatus for protecting a room against penetration thereinto of armed persons51US 4,122,783 A1978