Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5155098 | N-heteroaryl-purin-6-amines, and pharmaceutical compositions and methods employing them | Richard C. Effland, Joseph T. Klein, Larry Davis | 1992-10-13 |
| 5017578 | N-heteroaryl-purin-6-amines useful as analgesic and anticonvulsant agents | Richard C. Effland, Joseph T. Klein, Larry Davis | 1991-05-21 |