Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6428653 | Method of bleaching with formamidine sulfinic acid using a reducing agent to eliminate residual peroxide | Richard C. Denton | 2002-08-06 |
| 4878998 | Method for controlling peroxide bleaching in a plurality of bleaching stages | Jan-Erik Hook | 1989-11-07 |