Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877728 | Biotransformation of L-tyrosine and L-phenylalanine to 2,5-dihydroxyphenylacetic acid followed by polymerization to melanin pigments | Kathleen A. Black | 1989-10-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877728 | Biotransformation of L-tyrosine and L-phenylalanine to 2,5-dihydroxyphenylacetic acid followed by polymerization to melanin pigments | Kathleen A. Black | 1989-10-31 |