Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846958 | High severity visbreaking with recycle | Andrei Rhoe, Roger P. Van Driesen, Joseph F. Puzio, Vincent A. Strangio | 1989-07-11 |
| 4773986 | High severity visbreaking | Andrei Rhoe, Roger P. Van Driesen, Joseph F. Puzio, Vincent A. Strangio | 1988-09-27 |
| 4767521 | Treatment of feed for high severity visbreaking | James M. Chen, Andrei Rhoe, Roger P. Van Driesen, C. Bertil Fogman, Donald P. Satchell, Jr. | 1988-08-30 |