Inventor · Houston, TX, US

Stephen C. Stem

5Patents
5h-index
1Co-inventors
42Inventor score

Filing activity: Dec 9, 1985 → Feb 24, 1989

Most-cited inventions

PatentTitleAreaCited byStatus
US4804802A Isomerization process with recycle of mono-methyl-branched paraffins and normal paraffins Chemistry; Metallurgy 40 Expired
US4717784A Total isomerization process with mono-methyl-branched plus normal paraffin recycle stream Chemistry; Metallurgy 33 Expired
US4622130A Economic combinative solvent and catalytic dewaxing process employing methylisopropyl ketone as the solvent and a silicate-based catalyst Chemistry; Metallurgy 20 Expired
US4855529A Isomerization process with preliminary normal paraffin and mono-methyl paraffin feed capture step Chemistry; Metallurgy 14 Expired
US4982048A Isomerization process with preliminary normal paraffin and mono-methyl paraffin feed capture step Chemistry; Metallurgy 6 Expired

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