Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863898 | Amino acid chelated compositions for delivery to specific biological tissue sites | H. DeWayne Ashmead, Darrell J. Graff | 1989-09-05 |
| 4830716 | Preparation of pharmaceutical grade amino acid chelates | — | 1989-05-16 |