Inventor · Yorba Linda, CA, US

John W. Ward

93Patents
22h-index
24Co-inventors
88Inventor score

Filing activity: Oct 15, 1973 → Nov 28, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US4185040A Alkylation of aromatic hydrocarbons Chemistry; Metallurgy 75 Expired
US4419271A Hydrocarbon conversion catalyst Chemistry; Metallurgy 74 Expired
US4459426A Liquid-phase alkylation and transalkylation process Emerging Cross-Sectional Technologies 67 Expired
US4572778A Hydroprocessing with a large pore catalyst Chemistry; Metallurgy 51 Expired
US5275720A Gasoline hydrocracking catalyst and process Chemistry; Metallurgy 45 Expired
US4428862A Catalyst for simultaneous hydrotreating and hydrodewaxing of hydrocarbons Chemistry; Metallurgy 44 Expired
US5334307A Resid hydroprocessing catalyst Performing Operations; Transporting 39 Expired
US4097365A Hydrocracking process and catalyst for production of middle distillate oils Performing Operations; Transporting 36 Expired
US4429053A Rare earth-containing Y zeolite compositions Chemistry; Metallurgy 35 Expired
US4517074A Hydrocarbon conversion process Performing Operations; Transporting 34 Expired
US3945943A Zeolite containing compositions, catalysts and methods of making Performing Operations; Transporting 32 Expired
US4517073A Hydrocracking process and catalyst therefor Performing Operations; Transporting 30 Expired
US4576711A Hydrocracking process and catalyst therefor Chemistry; Metallurgy 29 Expired
US4686030A Mild hydrocracking with a catalyst having a narrow pore size distribution Performing Operations; Transporting 29 Expired
US4120825A Hydrogenative conversion catalyst Chemistry; Metallurgy 27 Expired
US5279726A Catalyst containing zeolite beta and processes for its use Performing Operations; Transporting 27 Expired
US4876408A Alkylation process using a catalyst having an increased selectivity for monoalkylation Chemistry; Metallurgy 27 Expired
US4683050A Mild hydrocracking with a catalyst containing an intermediate pore molecular sieve Chemistry; Metallurgy 26 Expired
US4565621A Hydrocracking with rare earth-containing Y zeolite compositions Chemistry; Metallurgy 26 Expired
US4695365A Hydrocarbon refining process Chemistry; Metallurgy 25 Expired
US5536687A Catalyst containing zeolite Beta Performing Operations; Transporting 23 Expired
US4036739A Catalytic cracking process using ammonia-stable zeolite catalyst Performing Operations; Transporting 23 Expired
US4879019A Hydrocarbon conversion process for selectively making middle distillates Chemistry; Metallurgy 21 Expired
US4428825A Catalytic hydrodewaxing process with added ammonia in the production of lubricating oils Chemistry; Metallurgy 21 Expired
US4867861A Process and catalyst for the dewaxing of shale oil Chemistry; Metallurgy 21 Expired

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