Inventor · Rutland, VT, US

Bernard Grushkin

37Patents
15h-index
54Co-inventors
84Inventor score

Filing activity: Jul 9, 1973 → Jul 10, 2001

Most-cited inventions

PatentTitleAreaCited byStatus
US5278020A Toner composition and processes thereof Physics 334 Expired
US5496676A Toner aggregation processes Physics 215 Expired
US5227460A Cross-linked toner resins Emerging Cross-Sectional Technologies 156 Expired
US5376494A Reactive melt mixing process for preparing cross-linked toner resin Physics 73 Expired
US4859550A Smear resistant magnetic image character recognition processes Physics 43 Expired
US6087059A Toner and developer compositions Physics 38 Expired
US5500324A Processes for low melt crosslinked toner resins and toner Physics 29 Expired
US5601960A Processes for low melt crosslinked toner resins and toner Physics 29 Expired
US5914209A Single development toner for improved MICR Physics 25 Expired
US5352556A Toners having cross-linked toner resins Emerging Cross-Sectional Technologies 21 Expired
US4457998A Composition with uncrosslinked polymer contained in a crosslinked polymer network Physics 20 Expired
US5391452A Polyester toner and developer compositions Emerging Cross-Sectional Technologies 19 Expired
US5145762A Processes for the preparation of toners Physics 19 Expired
US5368970A Toner compositions with compatibilizer Physics 17 Expired
US6503677B1 Emulsion aggregation toner particles coated with negatively chargeable and positively chargeable additives and method of making same Physics 15 Expired
US4032339A Photosensitive composition containing vanadyl phthalocyanine for photoelectrophoretic imaging systems Physics 15 Expired
US5344737A Polywax toner compositions and processes Emerging Cross-Sectional Technologies 13 Expired
US5486443A Magnetic toner compositions with silica, strontium titanate and polyvinylidene fluoride Physics 12 Expired
US5401602A Reactive melt mixing process for preparing cross-linked toner resins and toners therefrom Physics 12 Expired
US6294306A Method of making toners Physics 12 Expired
US5482805A Magnetic toner compositions with aluminum oxide, strontium titanate and polyvinylidene fluoride Physics 11 Expired
US4935324A Imaging processes with cold pressure fixable toner compositions Emerging Cross-Sectional Technologies 10 Expired
US4681829A Single component red developer compositions Physics 10 Expired
US5486444A Polyester processes for the preparation of toner Physics 10 Expired
US4810610A Conductive single component cold pressure fixable magnetic toner compositions Emerging Cross-Sectional Technologies 9 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.