Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5626718 | Use of polymers in the recycled fiber washing/deinking process | Irenee J. Philippe, Frank J. Sutman, Thomas Taggart, Michael Schuster, John C. Harrington | 1997-05-06 |
| 5387355 | Use of anionic surfactant/dispersant blends for the deinking of groundwood newsprint | — | 1995-02-07 |
| 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 |
| 5248388 | Use of surfactants having an HLB less than 10 in the deinking of dry toner electrostatic printed wastepaper | Sandra K. Richmann | 1993-09-28 |
| 5200034 | Use of surfactants having an HLB less than 10 in the deinking of dry toner electrostatic printed wastepaper | Sandra K. Richmann | 1993-04-06 |
| 5141598 | Process and composition for deinking dry toner electrostatic printed wastepaper | Sandra K. Richman | 1992-08-25 |
| 5094716 | Use of anionic surfactant/dispersant blends for the deinking of groundwood newsprint | — | 1992-03-10 |