Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489090 | Stabilized ascorbic acid developing compositions and methods of use | Shirleyanne E. Haye, Janet M. Huston, Hugh G. McGuckin | 2002-12-03 |
| 6444414 | Ascorbic acid developing compositions stabilized with sulfo compound and methods of use | Shirleyanne E. Haye, Janet M. Huston, John S. Badger | 2002-09-03 |