Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4647313 | Paving asphalt | — | 1987-03-03 |
| 4283230 | Air-treated propane-precipitated asphalt | Luke W. Corbett | 1981-08-11 |
| 4283231 | Sulfur-treated propane-precipitated asphalt | Luke W. Corbett | 1981-08-11 |