Inventor · Newark, DE, US

Mario Joseph Nappa

237Patents
19h-index
64Co-inventors
89Inventor score

Filing activity: Apr 13, 1988 → Feb 26, 2025

Most-cited inventions

PatentTitleAreaCited byStatus
US5396000A Process for the manufacture of 1,1,1,2,3,-pentafluoropropane Chemistry; Metallurgy 76 Expired
US6369284B1 Catalytic manufacture of pentafluoropropenes Emerging Cross-Sectional Technologies 71 Expired
US4847427A Process for preparing fluorocarbon polyethers Chemistry; Metallurgy 42 Expired
US7708903B2 Compositions comprising fluoroolefins and uses thereof Mechanical Engineering; Lighting; Heating 34 Active
US8097181B2 Ascorbic acid, terephthalate and nitromethane stabilizers for fluoroolefins Chemistry; Metallurgy 29 Active
US7423188B2 Azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene and hydrogen fluoride and uses thereof Chemistry; Metallurgy 28 Active
US8147709B2 Compositions comprising 3,3,3-trifluoropropyne Chemistry; Metallurgy 28 Active
US7687670B2 Coproduction of hydrofluoroolefins Chemistry; Metallurgy 27 Active
US5414165A Process for the manufacture of 1,1,1,3,3,3,-hexafluoropropane Chemistry; Metallurgy 27 Expired
US8232435B2 1,2,3,3,3-pentafluoropropene production processes Emerging Cross-Sectional Technologies 27 Active
US6066768A Perhalofluorinated butanes and hexanes Chemistry; Metallurgy 26 Expired
US8101094B2 Terpene, terpenoid, and fullerene stabilizers for fluoroolefins Chemistry; Metallurgy 23 Active
US8535555B2 Epoxide and fluorinated epoxide stabilizers for fluoroolefins Chemistry; Metallurgy 23 Active
US8394286B2 Thiol and thioether stabilizers for fluoroolefins Chemistry; Metallurgy 22 Active
US7420094B2 Catalytic isomerization processes of 1,3,3,3-tetrafluoropropene for making 2,3,3,3-tetrafluoropropene Chemistry; Metallurgy 22 Active
US8529786B2 Phosphorus-containing stabilizers for fluoroolefins Chemistry; Metallurgy 21 Active
US8333902B2 Compositions comprising 1,1,1,2,3-pentafluoropropane or 2,3,3,3- tetrafluoropropene Chemistry; Metallurgy 20 Active
US7981312B2 Processes for producing and compositions comprising 2,3,3,3-tetrafluoropropene and/or 1,2,3,3-tetrafluoropropene Chemistry; Metallurgy 19 Active
US8425795B2 Compositions comprising fluoroolefins and uses thereof Mechanical Engineering; Lighting; Heating 19 Active
US8668791B2 Ascorbic acid, terephthalate and nitromethane stabilizers for fluoroolefins Chemistry; Metallurgy 18 Active
US8496846B2 Phenol stabilizers for fluoroolefins Chemistry; Metallurgy 18 Active
US7985884B2 Process to manufacture 2,3,3,3-tetrafluoropropene Chemistry; Metallurgy 18 Active
US8663494B2 Terpene, terpenoid, and fullerene stabilizers for fluoroolefins Chemistry; Metallurgy 17 Active
US5945573A Process for the manufacture of 1,1,1,3,3-pentafluoropropane Performing Operations; Transporting 17 Expired
US7897823B2 Process for production of azeotrope compositions comprising hydrofluoroolefin and hydrogen fluoride and uses of said azeotrope compositions in separation processes Emerging Cross-Sectional Technologies 17 Active

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