Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6494949 | Process for the preparation of beta-phase quinacridone | Edward Sung, Kathleen Marie Kozak, Terrence R. Chamberlain | 2002-12-17 |
| 6471764 | Treatment of high performance pigments with etheramine dispersing salts | Kevin A. Arthur, Russell Schwartz, Stanislav G. Vilner, George McLaren | 2002-10-29 |
| 6464773 | Toluene sulfonic acid swelling of perylene pigments | Edward Sung, Chris M. Arizo | 2002-10-15 |
| 6402829 | Process for preparing a substantially pure gamma phase quinacridone pigment of large particle size | Edward Sung, Humberto Velasquez | 2002-06-11 |