Issued Patents All Time
Showing 76–80 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4426313 | Preparation of surfactants by sulfonating derivatives of depolymerized coal | — | 1984-01-17 |
| 4424169 | Preparation of surfactants | — | 1984-01-03 |
| 4414120 | Enhanced oil recovery | Thomas P. Malloy | 1983-11-08 |
| 4414380 | Unsubstituted biphenylene as a cross-linking monomer | — | 1983-11-08 |
| 4197393 | Biphenylene polymers and resins and the production thereof | Carl S. Marvel | 1980-04-08 |