Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6620234 | Processes for preparing hydrophobic inorganic oxide pigments | Robert J. Kostelnik, Modasser El-Shoulbary | 2003-09-16 |
| 6214106 | Silane treated inorganic pigments | Robert J. Kostelnik, Charles A. Wheddon | 2001-04-10 |
| 5653794 | Silane treated inorganic pigments | Robert J. Kostelnik, Charles A. Wheddon | 1997-08-05 |
| 4376655 | Production of an optically efficient titanium slurry | — | 1983-03-15 |
| 4209430 | Treatment of inorganic pigments | — | 1980-06-24 |