Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885300 | 4-Substituted pyrazolo[3,4-D]pyrimidine derivatives | Jeffery B. Press | 1989-12-05 |
| 4876257 | 6-Substituted purinyl piperazine derivatives useful as cardiotonic and antiarrhythmic agents | Ramesh M. Kanojia, Jeffery B. Press | 1989-10-24 |