Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5039469 | Method of making plastic tooling with compression adjustment | William A. Martell, Ladislaus Weiss, Robert P. VanJaarsveld | 1991-08-13 |
| 4976400 | Plastic tooling with compression adjustment | William A. Martell, Ladislaus Weiss, Robert P. VanJaarsveld | 1990-12-11 |
| 4955804 | Tool for molding plastic articles | William A. Martell | 1990-09-11 |