Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6420958 | Electronic combination lock with high security features | Michael P. Harvey | 2002-07-16 |
| 6314773 | High security lock mechanism | Michael P. Harvey, James L. Taylor, Thomas R. Clark, Gerry Dawson | 2001-11-13 |
| 6052063 | Electronic combination lock with high security features | Michael P. Harvey | 2000-04-18 |
| 5970756 | Dead bolt lock assembly cover | Edward Miller, Russell G. Waller | 1999-10-26 |
| 5973624 | Electronic combination lock with high security features | Michael P. Harvey | 1999-10-26 |
| 5960655 | High security lock mechanism | Michael P. Harvey, James L. Taylor, Thomas R. Clark, Gerry Dawson | 1999-10-05 |
| 5847656 | Electronic combination lock with high security features | Gerald L. Dawson, Daniel L. Thompson, Michael P. Harvey | 1998-12-08 |
| 5720194 | High security lock mechanism | Michael P. Harvey, James L. Taylor, Thomas R. Clark, Gerry Dawson | 1998-02-24 |
| 5715716 | High security lock mechanism | Michael P. Harvey, James L. Taylor, Thomas R. Clark, Gerry Dawson | 1998-02-10 |
| 5684457 | Tamper indication system for combination locks | Michael P. Harvey | 1997-11-04 |
| 5653135 | High security lock mechanism | Michael P. Harvey, James L. Taylor, Thomas R. Clark, Gerry Dawson | 1997-08-05 |
| 5517184 | Electronic combination lock with high security features | Gerald L. Dawson, Daniel L. Thompson, Michael P. Harvey | 1996-05-14 |
| 5487290 | High security lock mechanism | Michael P. Harvey, James L. Taylor, Thomas R. Clark, Gerry Dawson | 1996-01-30 |
| 5479802 | Method of installing a combination lock deadbolt assembly and a kit therefor | — | 1996-01-02 |
| 5396041 | Drill resistant hard plate and method for manufacture thereof | Kevin Rafferty, Leonard Wetz | 1995-03-07 |
| D353532 | Deadbolt lock | — | 1994-12-20 |
| 5343723 | Combination lock | Thomas E. Jasper | 1994-09-06 |
| D345094 | Protective cover for a combination lock dial | — | 1994-03-15 |
| 5257519 | Dead bolt assembly for combination dial lock assembly | — | 1993-11-02 |
| 5257520 | Entry protection device for combination dial locks | — | 1993-11-02 |
| 5106699 | Apparatus for filling in an opening in a wall of a safe | — | 1992-04-21 |
| 4865493 | Apparatus and method for opening combination safes | — | 1989-09-12 |