Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5342866 | Oxidized asphalt rubber system | David C. Trumbore, Michael R. Franzen | 1994-08-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5342866 | Oxidized asphalt rubber system | David C. Trumbore, Michael R. Franzen | 1994-08-30 |