Issued Patents All Time
Showing 1–2 of 2 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, Mongia Gagan, Robert W. Keown | 1997-10-28 |
| 5096726 | Prevention of fabric staining | Robert W. Keown, Lisa L. Oehrl | 1992-03-17 |