Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6372031 | Washable coloring compositions comprising low molecular-weight styrene-maleic anhydride copolymers | Richard A. VanDahm | 2002-04-16 |
| 6352584 | Washable coloring compositions comprising low molecular-weight styrene-maleic anhydride copolymers | Richard A. VanDahm | 2002-03-05 |