Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826838 | Analgesic carbocyclic and heterocyclic carbonylmethylene-and carbonylmethypipidines and-pyrrolidines | Brian P. Richardson, Rudolf K. A. Giger, Gunter Engel | 1989-05-02 |