Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870829 | Biological freezing apparatus | Lucille A. Oullette | 1989-10-03 |
| 4868767 | Reflectance gradient densitometer | Arthur E. Colvin, Jr. | 1989-09-19 |
| 4816269 | Process of pasteurizing or sterilizing edible foodstuffs | Edmund A. Nelson, Arthur E. Colvin, Jr., Matthew W. Hanley | 1989-03-28 |