Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302242 | Process and composition for deinking dry toner electrostatic printed wastepaper | Sandra K. Richmann | 1994-04-12 |
| 5282997 | Process and composition for deinking dry toner electrostatic printed wastepaper | Sandra K. Richmann | 1994-02-01 |
| 5281348 | Use of anionic surfactant/dispersant blends for the deinking of groundwood newsprint | — | 1994-01-25 |