Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668137 | N-heterocyclic sulfonamides having endothelin receptor activity | Paul J. Phillips, Peter Grahame Ballard, Roger James | 1997-09-16 |
| 5641793 | Pyridine compounds which have useful pharmaceutical activity | — | 1997-06-24 |