Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865759 | Dry peracid based bleaching product | Thomas S. Coyne, Daniel H. Klapprott, Eric A. Lutkin, Frances E. Mitchell, Ute H. Riggin +1 more | 1989-09-12 |
| 4863626 | Encapsulated enzyme in dry bleach composition | Thomas S. Coyne, J. Bruce England, Blanca L. Haendler, Frances E. Mitchell | 1989-09-05 |
| 4858758 | Oxidant bleach, container and fragrancing means therefor | Frances E. Mitchell, G. Edward Campbell | 1989-08-22 |