Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351766 | Production of penicillins | Derek Walker, Chester Sapino, David A. Johnson | 1982-09-28 |
| 4316016 | Cephalosporin intermediates | Derek Walker, Chester Sapino, David A. Johnson | 1982-02-16 |
| 4316017 | Cephalosporin intermediates | Derek Walker, Chester Sapino, David A. Johnson | 1982-02-16 |
| 4310458 | Production of penicillins | Derek Walker, Chester Sapino, David A. Johnson | 1982-01-12 |