Issued Patents 1997
Showing 1–2 of 2 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 |