Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865759 | Dry peracid based bleaching product | Daniel H. Klapprott, Eric A. Lutkin, Frances E. Mitchell, Ute H. Riggin, Dale S. Steichen +1 more | 1989-09-12 |
| 4863626 | Encapsulated enzyme in dry bleach composition | J. Bruce England, Blanca L. Haendler, Frances E. Mitchell, Dale S. Steichen | 1989-09-05 |