Inventor · Ponca City, OK, US

Rafael Espinoza

65Patents
18h-index
58Co-inventors
87Inventor score

Filing activity: Apr 2, 1996 → May 23, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US7541310B2 Silica-alumina catalyst support, catalysts made therefrom and methods of making and using same Performing Operations; Transporting 98 Active
US5733839A Catalysts Chemistry; Metallurgy 75 Expired
US6747066B2 Selective removal of oxygen from syngas Chemistry; Metallurgy 70 Expired
US7071239B2 Fischer-Tropsch processes and catalysts using stabilized supports Performing Operations; Transporting 49 Expired
US6278034A Hydrogenation of hydrocarbons Emerging Cross-Sectional Technologies 47 Expired
US7078439B2 Systems and methods for catalyst/hydrocarbon product separation Performing Operations; Transporting 43 Expired
US7022741B2 Gas agitated multiphase catalytic reactor with reduced backmixing Performing Operations; Transporting 43 Expired
US7341976B2 Stabilized boehmite-derived catalyst supports, catalysts, methods of making and using Chemistry; Metallurgy 39 Expired
US7045554B2 Method for improved Fischer-Tropsch catalyst stability and higher stable syngas conversion Chemistry; Metallurgy 32 Expired
US6875339B2 Octane improvement of a hydrocarbon stream Chemistry; Metallurgy 29 Expired
US6958363B2 Hydrogen use in a GTL plant Emerging Cross-Sectional Technologies 29 Expired
US7323100B2 Combination of amorphous materials for hydrocracking catalysts Performing Operations; Transporting 27 Expired
US7012104B2 Fischer-Tropsch processes and catalysts made from a material comprising boehmite Performing Operations; Transporting 24 Expired
US7449496B2 Stabilized boehmite-derived catalyst supports, catalysts, methods of making and using Chemistry; Metallurgy 23 Active
US6872753B2 Managing hydrogen and carbon monoxide in a gas to liquid plant to control the H2/CO ratio in the Fischer-Tropsch reactor feed Chemistry; Metallurgy 19 Expired
US7056857B2 Fischer-tropsch catalysts using multiple precursors Chemistry; Metallurgy 18 Expired
US7402612B2 Stabilized transition alumina catalyst support from boehmite and catalysts made therefrom Chemistry; Metallurgy 18 Expired
US6403660B1 Production of hydrocarbons Performing Operations; Transporting 18 Expired
US6800664B1 Conjoined reactor system Performing Operations; Transporting 17 Expired
US6946493B2 Managing hydrogen in a gas to liquid plant Emerging Cross-Sectional Technologies 17 Expired
US7232848B2 Gas agitated multiphase reactor with stationary catalyst solid phase Performing Operations; Transporting 15 Expired
US7012103B2 Commercial fischer-tropsch reactor Performing Operations; Transporting 14 Expired
US7176160B2 Method for forming a Fischer-Tropsch catalyst using a boehmite support Performing Operations; Transporting 13 Expired
US6962947B2 Pressure swing catalyst regeneration procedure for Fischer-Tropsh catalyst Emerging Cross-Sectional Technologies 12 Expired
US7276540B2 Supports for high surface area catalysts Emerging Cross-Sectional Technologies 12 Expired

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