Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847066 | Method of treating a consumable product and packaging for consumable products to indicate the presence of contamination | Jonathan Hale Perkins, Bradley J. Tenge | 1989-07-11 |
| 4800279 | Methods and devices for near-infrared evaluation of physical properties of samples | Gary M. Hieftje, Thomas B. Hirschfeld | 1989-01-24 |