Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5164212 | Method for coloring fruits and vegetables with anthraquinones and product | Dorothy K. Keefer, Jurgen H. Strasser, Lowell V. Dravenstadt, Russell Allan Lem | 1992-11-17 |