Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6068693 | Method for separating mixture of finely divided minerals and product thereof | William L. Garforth, Robert J. Pruett, Jun Yuan, Michael J. Garska, H. Vince Brown | 2000-05-30 |
| 5137574 | Method for producing high opacifying kaolin pigment | Paul R. Suitch, Ralph E. Turner, Jr., William B. Smith | 1992-08-11 |