Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873216 | Lanthana-alumina-aluminum phosphate catalyst composition | Robert P. L. Absil, Philip J. Angevine, Arthur W. Chester | 1989-10-10 |
| 4859648 | Layered metal chalcogenides containing interspathic polymeric chalcogenides | Michael E. Landis, Brent A. Aufdembrink, Pochen Chu, Ivy D. Johnson, Nancy M. Page +1 more | 1989-08-22 |
| 4834869 | Resid upgrading process | Philip J. Angevine, Pochen Chu, Thomas F. Degnan | 1989-05-30 |
| 4812222 | Production of lubricasting oils by hydrocracking | Philip Varghese | 1989-03-14 |
| 4810361 | Resid hydrotreating process using lanthana-alumina-aluminum phosphate catalyst | Robert P. L. Absil, Philip J. Angevine, Arthur W. Chester | 1989-03-07 |