Inventor · Danville, CA, US

Robert W. Hopper

9Patents
5h-index
14Co-inventors
60Inventor score

Filing activity: Mar 29, 1987 → Feb 27, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US5629741A Lateral image reversal of digital television signals Electricity 122 Expired
US4806290A Low density microcellular carbon or catalytically impregnated carbon forms and process for their preparation Chemistry; Metallurgy 43 Expired
US5686031A Method for rapidly producing microporous and mesoporous materials Chemistry; Metallurgy 29 Expired
US4756898A Low density microcellular carbon or catalytically impregnated carbon foams and process for their prepartion Chemistry; Metallurgy 25 Expired
US5289283A Inter-frame video filter having selective linear and non-linear transfer characteristics as function of inter-frame differences Electricity 11 Expired
US10975278B2 Granular stabilizer compositions for use in polymer resins and methods of making same Chemistry; Metallurgy 4 Active
USD374716S Burner pilot assembly General 3 Expired
USD374717S Horizontal pilot assembly General 2 Expired
US10473324B2 Infrared agricultural heater Mechanical Engineering; Lighting; Heating 0 Active

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