Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5070575 | Vertically adjustable sliding door suspension system | Carl E. Redman, James Ingram, Terry C. Potter, Milo Cejka, Joe Dorie +1 more | 1991-12-10 |
| 4881766 | Lock mechanism | Theodore E. Schmidt | 1989-11-21 |
| 4872286 | External latch structure for locking a door in different positions | Theodore E. Schmidt, William C. Thomas | 1989-10-10 |
| 4224599 | Visual warning apparatus for emergency vehicles | Robert E. Knepshield | 1980-09-23 |