Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5580507 | Method of making a mold and parts from the mold | Daniel A. Williamson, Bruce J. Kilgore, John Tawney | 1996-12-03 |
| 5435959 | Method of making a mold and parts from the mold | Daniel A. Williamson, Bruce J. Kilgore, John Tawney | 1995-07-25 |