Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6886379 | Anti-vandal door lock apparatus | Martin Simon | 2005-05-03 |
| 6868704 | Anti-vandal door lock apparatus | Martin Simon | 2005-03-22 |
| D474675 | Latch protector for cylindrical door lock | Martin Simon | 2003-05-20 |
| D474101 | Latch protector for cylindrical door lock | Martin Simon | 2003-05-06 |
| D462252 | Anti-vandal door pull | Martin Simon | 2002-09-03 |
| D458528 | Anti-vandal door pull | Martin Simon | 2002-06-11 |
| 6035487 | Universal door stop | — | 2000-03-14 |
| 5799367 | Floor mounted doorstop having adjustable rigidity | Martin Simon | 1998-09-01 |
| D384569 | Cane door pull | Martin Simon | 1997-10-07 |
| D377596 | Cane door pull | Martin Simon | 1997-01-28 |
| 5498038 | Multi-point door lock system | George W. Curtis, Andrew B. Campbell | 1996-03-12 |
| D354670 | Anti-vandal trim for door | Martin Simon | 1995-01-24 |
| 5381627 | Panic guard | Martin Simon | 1995-01-17 |
| D350473 | Shroud for a floor-engaging bolt mounted at the bottom of a panic-bar latch equipped door | Martin Simon | 1994-09-13 |
| 5076620 | Flush bolt mechanism for double doors | Andrew B. Campbell | 1991-12-31 |
| 5033234 | Door coordinator | Andrew B. Campbell | 1991-07-23 |
| 5004277 | Flush bolt mechanism for double doors | Andrew B. Campbell | 1991-04-02 |
| 4986583 | Door-latch opener | Andrew B. Campbell | 1991-01-22 |