Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5364516 | Catalytic cracking catalysts and additives | Ranjit Kumar, Ronald E. Ritter | 1994-11-15 |
| 5248642 | Catalytic cracking catalysts and additives | Ranjit Kumar, Ronald E. Ritter | 1993-09-28 |
| 4649140 | Purine derivatives | — | 1987-03-10 |
| 4360522 | Purine derivatives | — | 1982-11-23 |
| 4323573 | Adenine derivatives | — | 1982-04-06 |
| 4315920 | Adenosine deaminase inhibitors | Paulo M. S. DeMiranda, Gertrude B. Elion, George H. Hitchings | 1982-02-16 |
| 4294831 | Purine derivatives | — | 1981-10-13 |
| 4287188 | Purine derivatives | — | 1981-09-01 |
| 4199574 | Methods and compositions for treating viral infections and guanine acyclic nucleosides | — | 1980-04-22 |