B21D 53/42
Keys
Official title: keys {(making keys by combined operations B23P15/005)}
B21D53/42 (Keys) appears on 28 US grants and 4 published applications in this corpus.
Search patents in B21D- Granted patents
- 28
- Published applications
- 4
- Assignees
- 13
- Inventors
- 35
- Latest grant
- 12 Nov 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 2 | 1 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Secured delivery process utilizing manufactured temporary keys12 Nov 2019US 10,474,980 B1Amazon Technologies, Inc.
- Method and apparatus for forming a profile groove in a key blank30 Oct 2018US 10,112,243 B2Winloc AG
- Method and apparatus for forming a profile groove in a key blank20 Mar 2018US 9,919,368 B2Winloc AG
- System and method for reproducing coded keys25 Oct 2016US 9,475,130 B2
- Manual punch press for keys3 Feb 2009US 7,484,446 B1
- Method and apparatus for forming a profile groove in a key blank7 Jun 2018US 2018/0154467 A1Winloc AG
- System and Method for Reproducing Coded Keys13 Aug 2015US 2015/0224584 A1
- Method and apparatus for forming a profile groove in a key blank30 Jul 2015US 2015/0209878 A1Winloc AG
- Key duplicating machine6 Jul 2006US 2006/0147289 A1Jet Hardware Manufacturing Corporation
Most cited
By later US patents
- Key blade and method of producing same37US 4,815,307 AWiden Innovation AB · 1989
- Method and apparatus for making a secondary key for a lock mechanism36US 4,294,096 A1981
- Code key cutter having interchangeable attachments26US 3,981,214 A1976
- Coded key cutting device24US 4,373,414 A1983
- Key cutting machine23US 4,019,415 A1977