Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6616203 | Door latch operator mount | Damon J. Lenk | 2003-09-09 |
| 6578888 | Mortise lock with automatic deadbolt | Damon J. Lenk | 2003-06-17 |
| 6393878 | Mortise lock | Damon J. Lenk | 2002-05-28 |
| 6349982 | Reversible mortise lock | Damon J. Lenk | 2002-02-26 |
| 5414894 | Door closer | — | 1995-05-16 |
| 5386614 | Door closer | — | 1995-02-07 |
| 5343593 | Door closer | — | 1994-09-06 |
| 5259090 | Fluid door closer with means to permit entrapped gases to move | — | 1993-11-09 |
| 4944066 | Adjustable closer arm | Ronald S. Slusarski, Richard W. Schumacher | 1990-07-31 |