Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5948152 | Homogeneous liquid complexes of anionic organic dyes and quaternary ammonium compounds and methods of coloring utilizing such complexes | Xiaodong Zhao, Patrick D. Moore, Raj Batlaw | 1999-09-07 |
| 5938828 | Solid complexes of anionic organic dyes and quaternary ammonium compounds and methods of coloring utilizing such complexes | Xiaodong Zhao, Robert L. Mahaffey | 1999-08-17 |