Inventor · Rochester, NY, US

William E. Yoerger

23Patents
10h-index
12Co-inventors
72Inventor score

Filing activity: Mar 9, 1973 → Dec 15, 1998

Most-cited inventions

PatentTitleAreaCited byStatus
US5061593A Coated carrier particles for electrographic developers Emerging Cross-Sectional Technologies 33 Expired
US3975352A Repellent compositions and elements containing the same Performing Operations; Transporting 22 Expired
US5709975A Coated hard ferrite carrier particles Physics 16 Expired
US4726994A Method of modifying the charging propensity of carrier particles for electrostatographic developers and carrier particles produced thereby Emerging Cross-Sectional Technologies 14 Expired
US5272039A Preparation of magnetic carrier particles Physics 13 Expired
US4062681A Electrophotographic element having a hydrophobic, cured, highly cross-linked polymeric overcoat layer Physics 13 Expired
US5512403A Mixture of carrier particles useful in electrographic developers Physics 12 Expired
US5100754A Coated carrier particles and electrographic developers containing them Emerging Cross-Sectional Technologies 12 Expired
US5034297A Bound metal alkoxide coated toner particles Physics 11 Expired
US5989767A Carrier particles for electrostatographic developers Physics 10 Expired
US4195990A Electrophotographic papers employing organic photoconductors Physics 7 Expired
US3958991A Supersensitizing dye combination for electrophotographic composition and element Physics 6 Expired
US4737435A Method of modifying the charging propensity of carrier particles for electrostatographic developers Physics 6 Expired
US5411832A Method of modifying the charging propensity of carrier particles for electrostatographic developers and modified carrier particles Chemistry; Metallurgy 6 Expired
US5096797A Method for improving performance of barium and strontium ferrite carrier particles with acid wash Physics 5 Expired
US4082550A Hexachlorocyclopentene chemical sensitizers for heterogeneous organic photoconductive compositions Physics 4 Expired
US5705221A Method of depositing insoluble metal salt deposits on electrostatographic carrier surfaces Physics 4 Expired
US4145214A Co-crystalline organic photoconductors and heterogeneous compositions thereof Physics 4 Expired
US4599290A Negative charging carrier particles coated with a polymer having appended chlorendate groups Emerging Cross-Sectional Technologies 3 Expired
US5124223A Magnetic carrier cores coated with perfluorinated Werner complexes and developers containing the same Physics 2 Expired
US4119460A .pi.-Deficient N-heteroaromatic chemical sensitizers for heterogeneous organic photoconductor compositions and methods Physics 2 Expired
US4160666A Polymeric chemical sensitizers for organic photoconductive compositions Emerging Cross-Sectional Technologies 2 Expired
US5686217A Carrier particles bearing insoluble metal salt deposits Emerging Cross-Sectional Technologies 0 Expired

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