Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835313 | (5,6-dichloro-3-oxo-9.alpha.-propyl-2,3,9,9.alpha.-tet rahydrofluoren-7-yl) alkanimidamides | Adolph M. Pietruszkiewicz, Otto W. Woltersdorf, Jr. | 1989-05-30 |
| 4797391 | ((5,6-dichloro-3-oxo-9,9a-d isubstituted-2,3,9,9a-tetrahydrofluoren-7-yl)oxy)alkanoic acids and alkanimidamides | Otto W. Woltersdorf, Jr., Adolph M. Pietruszkiewicz | 1989-01-10 |