Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4276257 | Catalytic alkylation of hydrocarbons | Charles C. Chapman | 1981-06-30 |
| 4255605 | Diisopropyl from butenes | — | 1981-03-10 |
| 4236036 | Catalytic alkylation of hydrocarbons | Charles C. Chapman | 1980-11-25 |