Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5639500 | High molecular weight gallotannins as a stain-inhibiting agent for food dyes | Robert W. Fusi, II, Sigmund L. Klug | 1997-06-17 |
| 5571551 | High molecular weight gallotannins as a stain-inhibiting agent for food dyes | Robert W. Fusi, II, Sigmund L. Klug | 1996-11-05 |