E05F 3/10
With a spring, other than a torsion spring, and a piston, the
Official title: with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
E05F3/10 (With a spring, other than a torsion spring, and a piston, the) appears on 435 US grants and 348 published applications in this corpus.
Search patents in E05F- Granted patents
- 435
- Published applications
- 348
- Assignees
- 191
- Inventors
- 573
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 9 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 3 |
| 2002 | 12 | 7 |
| 2003 | 10 | 11 |
| 2004 | 5 | 19 |
| 2005 | 15 | 9 |
| 2006 | 9 | 10 |
| 2007 | 4 | 11 |
| 2008 | 6 | 16 |
| 2009 | 3 | 7 |
| 2010 | 8 | 14 |
| 2011 | 8 | 9 |
| 2012 | 5 | 18 |
| 2013 | 14 | 11 |
| 2014 | 18 | 12 |
| 2015 | 14 | 17 |
| 2016 | 12 | 15 |
| 2017 | 16 | 18 |
| 2018 | 14 | 19 |
| 2019 | 24 | 20 |
| 2020 | 16 | 22 |
| 2021 | 28 | 19 |
| 2022 | 12 | 10 |
| 2023 | 12 | 23 |
| 2024 | 13 | 10 |
| 2025 | 16 | 13 |
| 2026 | 10 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E05F 3/102With rack-and-pinion transmission between driving shaft and piston within the closer housing148
- E05F 3/104With cam-and-slide transmission between driving shaft and piston within the closer housing131
- E05F 3/108With piston rod protruding from the closer housing95
- E05F 3/106With crank-arm transmission between driving shaft and piston within the closer housing18
Recent patents
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Most cited
By later US patents
- Axial door operator101US 6,481,160 B1The Stanley Works · 2002
- 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
- Intelligent door restraint75US 9,121,217 B12015