E05B 49/002
Keys with mechanical characteristics
Official title: {Keys with mechanical characteristics, e.g. notches, perforations, opaque marks}
E05B49/002 (Keys with mechanical characteristics) appears on 189 US grants and 112 published applications in this corpus.
Search patents in E05B- Granted patents
- 189
- Published applications
- 112
- Assignees
- 89
- Inventors
- 323
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 11 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 4 |
| 2004 | 1 | 4 |
| 2005 | 4 | 4 |
| 2006 | 4 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 2 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 1 |
| 2014 | 2 | 5 |
| 2015 | 1 | 3 |
| 2016 | 4 | 29 |
| 2017 | 14 | 3 |
| 2018 | 15 | 9 |
| 2019 | 11 | 15 |
| 2020 | 7 | 8 |
| 2021 | 9 | 4 |
| 2022 | 7 | 2 |
| 2023 | 3 | 4 |
| 2024 | 5 | 4 |
| 2025 | 4 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electronic locking system with mechanical override and keyless locking system18 Aug 2026US 12,709,917 B2Tyco Fire & Security GmbH
- Electronic lock system3 Feb 2026US 12,540,491 B2
- 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.
- Electronic key reader for mechanical keys11 Mar 2025US 12,247,415 B2Schlage Lock Company LLC
- Electronic lock core replacement methods27 Aug 2026US 2026/0250982 A1KNOX Associates, dba Knox Company
- Electronic Rotational Lock System7 May 2026US 2026/0125932 A1
- Physically securing passive devices with smart phones2 Apr 2026US 2026/0094480 A1Huawei Technologies Co., Ltd.
- Electronic key reader for mechanical keys28 Aug 2025US 2025/0270848 A1Schlage Lock Company LLC
- Electronic locking system with mechanical override and keyless locking system5 Dec 2024US 2024/0401376 A1Security Enhancement Systems, LLC
Most cited
By later US patents
- Switch and lock activating system and method108US 4,354,189 A1982
- Weapon control system and method98US 4,488,370 A1984
- Electronic lock that can learn to recognize any ordinary key81US 6,318,137 B12001
- Switch and lock activating system and method71US 4,189,712 A1980
- Key actuated electronic lock for auto ignitions67US 4,050,063 A1977