E05B 39/002
Locks giving indication of authorised or unauthorised unlocking: by releasing a liquid
Official title: {by releasing a liquid, e.g. ill-smelling or dye}
E05B39/002 (Locks giving indication of authorised or unauthorised unlocking: by releasing a liquid) appears on 44 US grants and 29 published applications in this corpus.
Search patents in E05B- Granted patents
- 44
- Published applications
- 29
- Assignees
- 22
- Inventors
- 56
- Latest grant
- 28 Sep 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 3 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 2 | 3 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 5 |
| 2017 | 3 | 2 |
| 2018 | 1 | 2 |
| 2019 | 3 | 3 |
| 2020 | 0 | 1 |
| 2021 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for upgrading ink stain antitheft tags with RFID communications function28 Sep 2021US 11,131,123 B2All-Tag Corporation
- Theft deterrent device and system7 Sep 2021US 11,111,699 B2Skunklock, Inc.
- Method and apparatus for upgrading ink stain antitheft tags with RFID communications function19 Nov 2019US 10,480,219 B2All-Tag Corporation
- Theft deterrent device and system13 Aug 2019US 10,378,246 B2Skunklock, Inc.
- Pressurized chemical theft deterrent device22 Jan 2019US 10,184,271 B2Skunklock, Inc.
- Method And Apparatus For Upgrading Ink Stain Antitheft Tags With RFID Communications Function6 Feb 2020US 2020/0040613 A1All-Tag Corporation
- Theft deterrent device and system5 Dec 2019US 2019/0368225 A1Skunklock, Inc.
- Pressurized chemical theft deterrent device6 Jun 2019US 2019/0169878 A1Skunklock, Inc.
- Method and Apparatus for Upgrading Ink Stain Antitheft Tags with RFID Communications Function11 Apr 2019US 2019/0106910 A1All-Tag Corporation
- Theft deterrent device and system6 Dec 2018US 2018/0347231 A1Skunklock, Inc.
Most cited
By later US patents
- Antitheft device67US 5,077,872 AAntonson Security Denmark A/S · 1992
- Theft-deterrent tag58US 4,670,950 AMonarch Marking Systems, Inc. · 1987
- Detrimental-substance-containing theft-deterrent device56US 4,944,075 ASecurity Tag Systems, Inc. · 1990
- Theft deterrent tag49US 4,649,397 AMonarch Marking Systems, Inc. · 1987
- Detrimental-substance-containing theft-deterrent device49US 5,031,287 ASecurity Tag Systems, Inc. · 1991