Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7811375 | Pigment | Richard Berube, Mats F. Idvall, Ivan Petrovic, Scott Hedrick | 2010-10-12 |
| 5011534 | Calcined kaolin clay filler pigment for enhancing opacity and printing properties of newsprint and mechanical papers | Richard Berube, John S. Babiec, Jr., M. Phillip Jameson, Mitchell J. Willis | 1991-04-30 |