Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681604 | Stain-inhibiting agent for dyes with affinity for protonatable nitrogen, compositions containing same and uses thereof | Hualin Li, C. Paul Malone, Robert W. Keown | 1997-10-28 |