Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4322347 | 2-Carbamoyloxymethyl-penicillin derivatives | Derek Walker | 1982-03-30 |
| 4310459 | Process for producing carbamoyl substituted penams and carbamoyl substituted cephams from penicillin sulfoxide esters | Derek Walker | 1982-01-12 |