Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6048593 | Polymer concrete compositions, structures made therefrom, and methods of manufacture | John Espeland, Michael Olson | 2000-04-11 |
| 6034155 | Polymer concrete compositions, structures made therefrom and methods of manufacture | John Espeland, Michael Olson | 2000-03-07 |