Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D568717 | Keypad escutcheon | Anthony Longo, Joseph Toro, Ronald S. Slusarski, Frank Czerwinski, Brian R. Fournier +1 more | 2008-05-13 |
| 5335948 | Cylindrical lockset | George H. Norton, II, Damon J. Lenk | 1994-08-09 |
| 5322333 | Cylindrical lockset | George H. Norton, II | 1994-06-21 |
| 5269162 | Cylinder lock | Vladimir Freilich, Richard M. Davidian | 1993-12-14 |
| 5145223 | Cylindrical lock assembly | Kenneth W. Strickland | 1992-09-08 |
| 5125696 | Cylindrical lock assembly | Kenneth W. Strickland | 1992-06-30 |
| 5123682 | Cylindrical lock assembly | Edward T. Leitkowski | 1992-06-23 |
| 4631528 | Push bar exit device with alarm | Martin G. Handel, Ronald S. Slusarski | 1986-12-23 |