Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5200267 | Fire-retardant synthretic board product | — | 1993-04-06 |
| 5188785 | Apparatus and method of manufacturing synthetic boards including fire-retardant boards | David M. Harmon, Gordon Treliving, deceased, Rory G. Kirwan | 1993-02-23 |
| 5093058 | Apparatus and method of manufacturing synthetic boards | David M. Harmon | 1992-03-03 |