Inventor · Hawkesbury Upton, GB

Derek Marshall

12Patents
4h-index
12Co-inventors
57Inventor score

Filing activity: Apr 25, 1975 → Nov 17, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US8673031B2 Pretreated densified biomass products Emerging Cross-Sectional Technologies 16 Active
US3997315A Glass melting Chemistry; Metallurgy 9 Expired
US9400178B2 Method for optimising a measurement cycle Physics 6 Active
US9039792B2 Methods for producing and using densified biomass products containing pretreated biomass fibers Emerging Cross-Sectional Technologies 6 Active
US8530823B2 Tool setting or analysis device with backup or repeated trigger signal for detecting a tool Electricity 4 Active
US11674789B2 Machine tool apparatus Physics 2 Active
US11163288B2 Measurement method and apparatus Physics 1 Active
US9040899B2 Tool setting or analysis device with backup or repeated trigger signal for detecting a rotating tool Electricity 1 Active
US10457810B2 Densified biomass products containing pretreated biomass fibers Emerging Cross-Sectional Technologies 1 Active
US11209258B2 Machine tool apparatus Physics 0 Active
US10927307B2 Contaminant removal method for fractionating columns Chemistry; Metallurgy 0 Active
US11897067B2 Measurement device for a machine tool Performing Operations; Transporting 0 Active

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