Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476222 | Preparation of heat stable pigment violet 23 | Norman W. Smith, Terrence R. Chamberlain, Barbara N. Berg, Russell Schwartz | 2002-11-05 |
| 6471764 | Treatment of high performance pigments with etheramine dispersing salts | George H. Robertson, Kevin A. Arthur, Russell Schwartz, Stanislav G. Vilner | 2002-10-29 |