Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846958 | High severity visbreaking with recycle | Robert J. Feldman, Andrei Rhoe, Roger P. Van Driesen, Vincent A. Strangio | 1989-07-11 |
| 4773986 | High severity visbreaking | Robert J. Feldman, Andrei Rhoe, Roger P. Van Driesen, Vincent A. Strangio | 1988-09-27 |