Thomas R. Hoffend
66Patents
19h-index
93Co-inventors
87Inventor score
Filing activity: Jul 24, 1974 → Jun 28, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4560635A | Toner compositions with ammonium sulfate charge enhancing additives | Physics | 289 | Expired |
| US5227460A | Cross-linked toner resins | Emerging Cross-Sectional Technologies | 156 | Expired |
| US4185140A | Polymeric release agents for electroscopic thermoplastic toners | Emerging Cross-Sectional Technologies | 98 | Expired |
| US4101686A | Method of fusing toner images using functionalized polymeric release agents | Emerging Cross-Sectional Technologies | 87 | Expired |
| US5376494A | Reactive melt mixing process for preparing cross-linked toner resin | Physics | 73 | Expired |
| US6228555A | Thermal mass transfer donor element | Emerging Cross-Sectional Technologies | 71 | Expired |
| US6284425A | Thermal transfer donor element having a heat management underlayer | Performing Operations; Transporting | 59 | Expired |
| US4883736A | Electrophotographic toner and developer compositions with polymeric alcohol waxes | Emerging Cross-Sectional Technologies | 55 | Expired |
| US4490455A | Amine acid salt charge enhancing toner additives | Physics | 36 | Expired |
| US6468715B2 | Thermal mass transfer donor element | Emerging Cross-Sectional Technologies | 34 | Expired |
| US6042981A | Coated carrier | Physics | 32 | Expired |
| US6004712A | Coated carrier | Physics | 32 | Expired |
| US4397935A | Positively charged developer compositions containing quaternized vinyl pyridine polymers | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5548059A | Unsaturated polyesters | Physics | 28 | Expired |
| US4876169A | Toner compositions with release additives therein | Physics | 24 | Expired |
| US5352556A | Toners having cross-linked toner resins | Emerging Cross-Sectional Technologies | 21 | Expired |
| US9862124B2 | Multilayer optical adhesives and methods of making same | Chemistry; Metallurgy | 21 | Active |
| US6355391B1 | Micro-powder coating for xerographic carrier | Emerging Cross-Sectional Technologies | 21 | Expired |
| US10647032B2 | Multilayer optical adhesives and methods of making same | Chemistry; Metallurgy | 19 | Active |
| US4752550A | Toner compositions with inner salt charge enhancing additives | Physics | 15 | Expired |
| US5935750A | Coated carrier | Physics | 14 | Expired |
| US6010812A | Coated carrier | Physics | 14 | Expired |
| US5407772A | Unsaturated polyesters | Physics | 13 | Expired |
| US6689538B2 | Thermal mass transfer donor element | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5393630A | Melt mixing processes | Physics | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.