Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650003 | Cationized pigments and their use in papermaking | Lester William House | 1997-07-22 |
| 5635023 | Process for removing toners from photocopy paper using hydroxamate collectors | — | 1997-06-03 |
| 5540814 | Method for removing stickies from wastepaper using modified cationic kaolin | Henry Agbaje, Janet Woodward, Andres Vaska, Roger Gaudreault | 1996-07-30 |
| 5336311 | Cationic pigments | Kenneth A. Johnson, Lester William House | 1994-08-09 |
| 5089056 | Opacifying kaolin pigments and process for making same by reacting with sodium hydroxide in water | Joseph C. S. Shi, Timothy L. Salter | 1992-02-18 |