Mary Beth Letscher
9Patents
6h-index
7Co-inventors
45Inventor score
Filing activity: Sep 19, 1990 → Sep 16, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5626718A | Use of polymers in the recycled fiber washing/deinking process | Emerging Cross-Sectional Technologies | 94 | Expired |
| US5200034A | Use of surfactants having an HLB less than 10 in the deinking of dry toner electrostatic printed wastepaper | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5141598A | Process and composition for deinking dry toner electrostatic printed wastepaper | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5248388A | Use of surfactants having an HLB less than 10 in the deinking of dry toner electrostatic printed wastepaper | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5094716A | Use of anionic surfactant/dispersant blends for the deinking of groundwood newsprint | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5281348A | Use of anionic surfactant/dispersant blends for the deinking of groundwood newsprint | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5302242A | Process and composition for deinking dry toner electrostatic printed wastepaper | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5282997A | Process and composition for deinking dry toner electrostatic printed wastepaper | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5387355A | Use of anionic surfactant/dispersant blends for the deinking of groundwood newsprint | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.