Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6444147 | Apparatus for making molds for thermoforming a three-dimensional relief reproduction | — | 2002-09-03 |
| 6444148 | Process and making molds for thermoforming a three-dimensional relief reproduction | — | 2002-09-03 |
| 5958470 | Vacuum forming apparatus for forming a three-dimensional surface article | William D. Harding, William Liddle | 1999-09-28 |
| 5904962 | Raised mounting system for artistic work | William D. Harding, William Liddle | 1999-05-18 |
| 5667747 | Vacuum formed three-dimensional surface article | William D. Harding, William Liddle | 1997-09-16 |