E05F 17/001
Special devices for shifting a plurality of wings operated simultaneously: of prison
Official title: {of prison cell doors}
E05F17/001 (Special devices for shifting a plurality of wings operated simultaneously: of prison) appears on 8 US grants and 2 published applications in this corpus.
Search patents in E05F- Granted patents
- 8
- Published applications
- 2
- Assignees
- 6
- Inventors
- 11
- Latest grant
- 24 Feb 2015
Filings by year
| Year | Granted patents | Published applications |
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| 1976 | 1 | 0 |
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| 1987 | 2 | 0 |
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| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Sliding security door24 Feb 2015US 8,959,836 B2Hydra DoorCo LLC
- Detention facility cell door lock and housing assembly10 Sep 2013US 8,528,272 B1Willo Products Company, Inc.
- Detention cell locking system5 Apr 1994US 5,299,385 AGlitsch, Inc.
- Jail cell lock mechanism6 Feb 1990US 4,897,959 AMarotta Scientific Controls, Inc.
- Control system for an automatic door16 Jun 1987US 4,673,848 AYoshida Kogyo K. K.
Most cited
By later US patents
- Control system for an automatic door41US 4,673,848 AYoshida Kogyo K. K. · 1987
- Detention facility cell door lock and housing assembly15US 8,528,272 B1Willo Products Company, Inc. · 2013
- Jail cell lock mechanism13US 4,897,959 AMarotta Scientific Controls, Inc. · 1990
- Detention cell locking system13US 5,299,385 AGlitsch, Inc. · 1994
- Jail door operating and locking mechanism8US 4,641,458 A1987