Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968070 | Push bar dogging apparatus | — | 1990-11-06 |
| 4934800 | Low cost lever handle entry function | — | 1990-06-19 |
| 4865367 | Safety door with counterweight locking | — | 1989-09-12 |
| 4838587 | Mechanism for controllably deadlocking a door to a door frame, for panic release | — | 1989-06-13 |
| 4824150 | Fire responsive safety door assembly | Gregg Smith | 1989-04-25 |
| 4351477 | Pop-up sprinkler | — | 1982-09-28 |
| 4212426 | Protective housing for irrigation sprinklers | — | 1980-07-15 |