Inventor · Ponca City, OK, US

Doug Jack

10Patents
7h-index
21Co-inventors
55Inventor score

Filing activity: May 6, 2002 → Feb 3, 2005

Most-cited inventions

PatentTitleAreaCited byStatus
US6723886B2 Use of catalytic distillation reactor for methanol synthesis Emerging Cross-Sectional Technologies 113 Expired
US6875339B2 Octane improvement of a hydrocarbon stream Chemistry; Metallurgy 29 Expired
US6854602B2 Hydrogen-selective silica-based membrane Chemistry; Metallurgy 28 Expired
US6974842B1 Process for catalyst recovery from a slurry containing residual hydrocarbons Chemistry; Metallurgy 24 Expired
US7019184B2 Non-oxidative conversion of gas to liquids Emerging Cross-Sectional Technologies 15 Expired
US6929754B2 Solid/liquid separation system for multiphase converters Performing Operations; Transporting 8 Expired
US6887390B2 Optimized solid/liquid separation system for multiphase converters Performing Operations; Transporting 8 Expired
US7354507B2 Hydroprocessing methods and apparatus for use in the preparation of liquid hydrocarbons Chemistry; Metallurgy 6 Expired
US7541504B2 Octane improvement of a hydrocarbon stream Chemistry; Metallurgy 1 Active
US6897246B2 Recycling light olefins in multistage Fischer Tropsch processes Chemistry; Metallurgy 1 Expired

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