Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5117745 | Safety lock | Kenneth E. Prochnow | 1992-06-02 |
| 4858520 | Auxiliary frame for ceiling mounted air diffusers and the like | Kenneth E. Prochnow | 1989-08-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5117745 | Safety lock | Kenneth E. Prochnow | 1992-06-02 |
| 4858520 | Auxiliary frame for ceiling mounted air diffusers and the like | Kenneth E. Prochnow | 1989-08-22 |