Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8011703 | Lever handle door furniture | Robert J. Watson | 2011-09-06 |
| 6374650 | Lock mechanism | — | 2002-04-23 |
| D402876 | Deadlock case | David Blanch | 1998-12-22 |
| D402877 | Deadlock | David Blanch | 1998-12-22 |
| 5504477 | Tracking system | Kenyon C. Whitright, Kenneth R. Fasen | 1996-04-02 |
| 4918953 | Lock mechanism | — | 1990-04-24 |
| D296519 | Padlock or similar article | John A. Christie | 1988-07-05 |
| 4724691 | Lock bolt mechanism | John A. Christie | 1988-02-16 |
| 4719774 | Deadbolt assembly | John A. Christie | 1988-01-19 |
| 4699409 | Method and means for fixing door furniture | — | 1987-10-13 |
| 4689975 | Padlock | Gerald F. Dunphy | 1987-09-01 |
| 4624119 | Tumbler lock | Gerald F. Dunphy | 1986-11-25 |
| 4512166 | Cylinder lock and key | Gerald F. Dunphy | 1985-04-23 |
| 4382349 | Window operator | Gerald F. Dunphy | 1983-05-10 |
| 4320638 | Tumbler lock and key | Gerald F. Dunphy | 1982-03-23 |