E05B 19/20
Skeleton keys
Official title: Skeleton keys; Devices for picking locks; Other devices for similar purposes {; Means to open locks not otherwise provided for, e.g. lock pullers (forcing doors open A62B3/005)}
E05B19/20 (Skeleton keys) appears on 139 US grants and 61 published applications in this corpus.
Search patents in E05B- Granted patents
- 139
- Published applications
- 61
- Assignees
- 34
- Inventors
- 157
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 10 | 0 |
| 1988 | 0 | 0 |
| 1989 | 9 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 0 |
| 2003 | 1 | 6 |
| 2004 | 4 | 1 |
| 2005 | 1 | 6 |
| 2006 | 2 | 2 |
| 2007 | 3 | 4 |
| 2008 | 1 | 1 |
| 2009 | 2 | 3 |
| 2010 | 3 | 6 |
| 2011 | 5 | 1 |
| 2012 | 3 | 3 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 4 | 5 |
| 2016 | 8 | 3 |
| 2017 | 1 | 2 |
| 2018 | 3 | 4 |
| 2019 | 1 | 3 |
| 2020 | 2 | 1 |
| 2021 | 3 | 4 |
| 2022 | 3 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Folding lock pick set23 Sep 2025US 12,421,761 B2DB Imports
- Method and system for opening locks22 Aug 2023US 11,732,502 B2Pumpam Solutions S.L.
- Constructing physical keys by way of digital keys27 Sep 2022US 11,454,047 B2International Business Machines Corporation
- Apparatus and method to visually decipher a keyed lock cylinder9 Aug 2022US 11,408,200 B1
- Integrated zipper lock1 Mar 2022US 11,261,621 B2The Sunlock Company, Ltd.
- Automotive unlocking tool18 Dec 2025US 2025/0382825 A1
- Apparatus and method for decoding a keyed lock cylinder19 Jun 2025US 2025/0198194 A1
- Door locking device4 Jul 2024US 2024/0218697 A1
- Folding lock pick set28 Dec 2023US 2023/0417078 A1DB Imports
- Apparatus and method to visually decipher a keyed lock cylinder2 Dec 2021US 2021/0372160 A1
Most cited
By later US patents
- Method and apparatus for decoding lock cylinders37US 6,134,928 A2000
- Tool set and method for opening and decoding locks30US 4,667,494 A1987
- Method and apparatus for decoding twisting tumbler locks and locks resistant thereto25US 3,987,654 ALock Technology, Inc. · 1976
- Bolt type lock puller24US 4,420,864 AOmco Inc. · 1983
- System for obstructing movement of lock pins22US 7,775,074 B12010