Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7977425 | Co-milling organic pigments with fumed silica | Tapan K. Debroy | 2011-07-12 |
| 7419542 | 2,9-dichloro-quinacridone as α-quinacridone crystal phase inhibitor | Yingxia He, Colin D. Campbell, Gordian Schilling, Rhonda Carter, Melissa Wagner +1 more | 2008-09-02 |
| 5853476 | Process for coloring concrete using compacted inorganic granules | — | 1998-12-29 |
| 5401313 | Surface modified particles and method of making the same | William W. Supplee | 1995-03-28 |