Inventor · Dormagen, DE

Stephan Konrad

14Patents
3h-index
29Co-inventors
60Inventor score

Filing activity: Oct 6, 1988 → Feb 11, 2013

Most-cited inventions

PatentTitleAreaCited byStatus
US4865520A Marine propeller with addendum Performing Operations; Transporting 12 Expired
US7411375B2 Apparatus for issuing an electrical output signal Physics 6 Expired
US7799889B2 Polycarbonates with good wettability Emerging Cross-Sectional Technologies 3 Active
US8389664B2 High molecular weight, random, bisphenol based copoly(phosphonate carbonate)s Chemistry; Metallurgy 3 Active
US6853685B1 Circuit arrangement for the electrically isolated transfer of digital signals Electricity 2 Expired
US8487025B2 Branched melt polycarbonate with low content of defective structures Chemistry; Metallurgy 1 Active
US7893135B2 Impact-modified polyalkylene terephthalate/polycarbonate compositions Chemistry; Metallurgy 1 Active
US7649489B2 Apparatus for analog/digital conversion of a measurement voltage Electricity 1 Expired
US8163822B2 Polycarbonate composition with improved melt-flowability Chemistry; Metallurgy 0 Active
US8521309B2 Method for operating a system of field devices Electricity 0 Active
US8507732B2 Purification of tris-hydroxyaryl compounds Chemistry; Metallurgy 0 Active
US7589165B2 Polycarbonates having a good wettability Emerging Cross-Sectional Technologies 0 Expired
US8716380B2 Polycarbonate composition having improved heat stability Chemistry; Metallurgy 0 Active
US8648163B2 High molecular weight, random, bisphenol based copoly(phosphonate carbonate)s Chemistry; Metallurgy 0 Active

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