Inventor · Yardley, PA, US

Stuart D. Hellring

93Patents
14h-index
118Co-inventors
87Inventor score

Filing activity: Feb 4, 1985 → Jul 12, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US7015271B2 Hydrophobic particulate inorganic oxides and polymeric compositions containing same Emerging Cross-Sectional Technologies 95 Expired
US5942651A Process for converting C.sub.9 + aromatic hydrocarbons to lighter aromatic products by transalkylation in the prescence of two zeolite-containing catalysts Emerging Cross-Sectional Technologies 65 Expired
US5780703A Process for producing low aromatic diesel fuel with high cetane index Chemistry; Metallurgy 45 Expired
US6736891B1 Process for producing hydrophobic particulate inorganic oxides Chemistry; Metallurgy 32 Expired
US6002059A Process for upgrading natural gas Emerging Cross-Sectional Technologies 31 Expired
US7632563B2 Transparent composite articles Emerging Cross-Sectional Technologies 29 Active
US6656241B1 Silica-based slurry Electricity 28 Expired
US5347060A Phase-transfer catalysis with onium-containing synthetic mesoporous crystalline material Chemistry; Metallurgy 28 Expired
US7279119B2 Silica and silica-based slurry Electricity 27 Expired
US9056988B2 Solar reflective coatings and coating systems Chemistry; Metallurgy 23 Active
US5227552A Process for hydrogenating alkenes in the presence of alkanes and a heterogeneous catalyst Emerging Cross-Sectional Technologies 17 Expired
US10927267B2 Infrared fluorescent coatings Chemistry; Metallurgy 17 Active
US9273399B2 Pretreatment compositions and methods for coating a battery electrode Emerging Cross-Sectional Technologies 14 Active
US5209918A Synthesis of crystalline ZSM-5-type material Performing Operations; Transporting 14 Expired
US5190736A Synthesis of crystalline ZSM-35 Chemistry; Metallurgy 12 Expired
US9057835B2 Coating compositions that transmit infrared radiation and exhibit color stability and related coating systems Chemistry; Metallurgy 12 Active
US5143876A Preparation of hydroxyl-rich zeolites Performing Operations; Transporting 11 Expired
US5175375A Selective ortho propylation of phenol over large pore zeolite Chemistry; Metallurgy 10 Expired
US4724270A Catalytic conversion over dehydroxylated zeolite Chemistry; Metallurgy 9 Expired
US4578521A Shape-selective catalytic oxidation of phenol Emerging Cross-Sectional Technologies 9 Expired
US5174981A Synthesis of crystalline ZSM-5-type material Chemistry; Metallurgy 9 Expired
US4790928A Catalytic conversion over dehydroxylated zeolite Chemistry; Metallurgy 9 Expired
US8728217B2 Filtration media and applications thereof Performing Operations; Transporting 8 Active
US5174980A Synthesis of crystalline ZSM-35 Chemistry; Metallurgy 8 Expired
US6207871A High-purity meta-xylene production process Chemistry; Metallurgy 8 Expired

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