Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5371215 | 4-substituted azetidinones as precursors to 2-substituted-3-carboxy carbapenem antibiotics and a method of producing them | Gregg Feigelson, Carl Bernard Ziegler | 1994-12-06 |
| 5369102 | 2-substituted alkyl-3-carboxy carbopenems as antibiotics and a method of producing them | Carl Bernard Ziegler, Gregg Feigelson | 1994-11-29 |