Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4332707 | Synergistic solvent solution of xylene and stoddard solvent for chemically modified asphalt | Michael G. Roberts | 1982-06-01 |
| 4325854 | Solvent solutions of chemically modified asphalts | Michael G. Roberts | 1982-04-20 |