Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D546161 | Push bar for exit device | Mark Warden | 2007-07-10 |
| 7234201 | Door closer power adjusting device | Peter E. Brown | 2007-06-26 |
| 7055871 | Electronic door lock dogging mechanism | Mark Warden | 2006-06-06 |
| 6397430 | Adjustable hydraulic backcheck door closer | Peter E. Brown | 2002-06-04 |
| 6260236 | Door closer with hydraulic back checking | — | 2001-07-17 |
| 5829097 | Hold open control for a door closer | — | 1998-11-03 |
| 5666692 | Adjustable power closure | — | 1997-09-16 |
| 5322332 | Rim type latching system | Petros Z. Mantarakis | 1994-06-21 |
| 5114192 | Latching system | James A. O'Brien, II | 1992-05-19 |
| 5085474 | Reversible door latch opener | John E. Betts | 1992-02-04 |
| 5050268 | Door closer with back checking means | — | 1991-09-24 |
| 5031945 | Mount for panic device | — | 1991-07-16 |
| 5024070 | Lock mounting pad | — | 1991-06-18 |
| 5016927 | Dogging device for panic exit device | — | 1991-05-21 |
| 4839988 | Panic exit device | John E. Betts | 1989-06-20 |
| 4665863 | Animal feeding apparatus | — | 1987-05-19 |