Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6486248 | Liquid colorant and method | David E. Ashley, Paul D. Halphen | 2002-11-26 |
| 6479648 | Polymeric bis-acetoacetanilide azo colorants | Jusong Xia, Eric B. Stephens, Mary G. Mason, John W. Miley | 2002-11-12 |