E05F 3/22
Additional arrangements for closers
Official title: Additional arrangements for closers, e.g. for holding the wing in opened or other position
E05F3/22 (Additional arrangements for closers) appears on 529 US grants and 395 published applications in this corpus.
Search patents in E05F- Granted patents
- 529
- Published applications
- 395
- Assignees
- 227
- Inventors
- 730
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 10 | 0 |
| 1988 | 12 | 0 |
| 1989 | 10 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 13 | 0 |
| 1997 | 8 | 0 |
| 1998 | 9 | 0 |
| 1999 | 12 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 2 |
| 2002 | 13 | 9 |
| 2003 | 13 | 9 |
| 2004 | 5 | 10 |
| 2005 | 11 | 12 |
| 2006 | 6 | 12 |
| 2007 | 5 | 12 |
| 2008 | 2 | 23 |
| 2009 | 3 | 10 |
| 2010 | 11 | 7 |
| 2011 | 4 | 16 |
| 2012 | 7 | 17 |
| 2013 | 22 | 19 |
| 2014 | 22 | 13 |
| 2015 | 12 | 11 |
| 2016 | 11 | 19 |
| 2017 | 14 | 18 |
| 2018 | 17 | 31 |
| 2019 | 27 | 28 |
| 2020 | 25 | 19 |
| 2021 | 28 | 28 |
| 2022 | 20 | 20 |
| 2023 | 27 | 20 |
| 2024 | 12 | 14 |
| 2025 | 15 | 11 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Telescopic rod structure and adjustable box6 Oct 2026US 12,752,970 B2Taizhou Sukk Technology Co., Ltd
- Door opening speed controller and automatic opening structure for an appliance23 Jun 2026US 12,666,505 B2LG Electronics Inc.
- Gate apparatus and method2 Jun 2026US 12,644,332 B2Crusader Fence Company LLC
- Hold-open device for door closers26 May 2026US 12,637,889 B2Schlage Lock Company LLC
- Door opening and closing device5 May 2026US 12,618,279 B2Mitsui Kinzoku Act Corporation
- Hold-open device for door closers24 Sep 2026US 2026/0286758 A1Schlage Lock Company LLC
- Door closer13 Aug 2026US 2026/0234977 A1Dormakaba Deutschland GmbH
- Door operator armature connections23 Jul 2026US 2026/0210166 A1Schlage Lock Company LLC
- Refrigerator30 Apr 2026US 2026/0118045 A1Samsung Electronics Co., Ltd.
- Door closer casings26 Feb 2026US 2026/0055650 A1Schlage Lock Company LLC
Most cited
By later US patents
- Axial door operator101US 6,481,160 B1The Stanley Works · 2002
- Door and door closer assembly101US 6,705,047 B22004
- Intelligent door restraint99US 8,225,458 B12012
- Method for controlling the operational modes of a door in conjunction with a mechanical door control mechanism86US 5,913,763 ADorma Door Controls, Inc. · 1999
- Automatic door operator for swing doors81US 4,501,090 AChikura Kogyo Kabushiki Kaisha · 1985