E05B 11/00
Devices preventing keys from being removed from the lock
Official title: Devices preventing keys from being removed from the lock {; Devices preventing falling or pushing out of keys (preventing turning of the key E05B13/00; keyhole guards E05B17/14; E05B35/086 takes precedence)}
E05B11/00 (Devices preventing keys from being removed from the lock) appears on 101 US grants and 78 published applications in this corpus.
Search patents in E05B- Granted patents
- 101
- Published applications
- 78
- Assignees
- 67
- Inventors
- 168
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 3 | 6 |
| 2003 | 5 | 2 |
| 2004 | 3 | 4 |
| 2005 | 1 | 2 |
| 2006 | 4 | 8 |
| 2007 | 3 | 3 |
| 2008 | 4 | 1 |
| 2009 | 0 | 3 |
| 2010 | 2 | 2 |
| 2011 | 1 | 2 |
| 2012 | 2 | 2 |
| 2013 | 4 | 2 |
| 2014 | 3 | 2 |
| 2015 | 3 | 3 |
| 2016 | 2 | 1 |
| 2017 | 2 | 3 |
| 2018 | 4 | 3 |
| 2019 | 3 | 5 |
| 2020 | 4 | 4 |
| 2021 | 2 | 4 |
| 2022 | 1 | 2 |
| 2023 | 3 | 1 |
| 2024 | 2 | 9 |
| 2025 | 4 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Key-operable lockset2 Jun 2026US 12,644,306 B2Schlage Lock Company LLC
- Blocking device for a closure element or a switching element6 Jan 2026US 12,516,545 B2Dormakaba Schweiz AG
- Electronic lock core replacement methods30 Dec 2025US 12,509,910 B2Knox Associates, Inc.
- Electronic lock core replacement systems19 Aug 2025US 12,392,164 B2Knox Associates, Inc.
- Key capture lock15 Jul 2025US 12,359,461 B2United States Postal Service
- Electronic lock core replacement methods27 Aug 2026US 2026/0250982 A1KNOX Associates, dba Knox Company
- Key capture lock6 Nov 2025US 2025/0341114 A1United States Postal Service
- Key-operable lockset19 Dec 2024US 2024/0418003 A1Schlage Lock Company LLC
- Blocking device for a closure element or a switching element19 Dec 2024US 2024/0418008 A1Dormakaba Schweiz AG
- Locking device with a stator, a rotor, and an anti-pull-out device28 Nov 2024US 2024/0392603 A1Dormakaba Schweiz AG
Most cited
By later US patents
- Trapped key mechanism112US 4,109,496 ANorris Industries, Inc. · 1978
- Electronic locking system103US 6,474,122 B2Videx, Inc. · 2002
- Post office locker100US 4,865,248 AAmerican Locker Group Incorporated · 1989
- Electronic locking system80US 6,615,625 B2Videx, Inc. · 2003
- Electronic locking system with emergency exit feature80US 6,718,806 B2Videx, Inc. · 2004