Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6283193 | Adjustable tensioning arrangement for modular security door system | Geza J. Szayer | 2001-09-04 |
| 5284199 | Panel construction for a wall or roll-up door system | Geza J. Szayer | 1994-02-08 |
| 5172744 | Roll-up door system | Geza J. Szayer | 1992-12-22 |
| 4930563 | Modular security door system | Geza J. Szayer | 1990-06-05 |
| 4921033 | Security door system | Geza J. Szayer | 1990-05-01 |
| 4807687 | Security door system | Geza J. Szayer | 1989-02-28 |
| 4546590 | Partition wall system and components therefor | Geza J. Szayer | 1985-10-15 |
| 4234220 | Exterior safety lock apparatus | Geza J. Szayer | 1980-11-18 |