Inventor · San Ramon, CA, US

Marcus Oliver Wigand

15Patents
9h-index
18Co-inventors
65Inventor score

Filing activity: Feb 15, 2007 → Dec 21, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US7500517B2 Kerogen extraction from subterranean oil shale resources Emerging Cross-Sectional Technologies 41 Active
US8851177B2 In-situ kerogen conversion and oxidant regeneration Chemistry; Metallurgy 40 Active
US8936089B2 In-situ kerogen conversion and recovery Emerging Cross-Sectional Technologies 40 Active
US7789164B2 Kerogen extraction from subterranean oil shale resources Emerging Cross-Sectional Technologies 38 Active
US8701788B2 Preconditioning a subsurface shale formation by removing extractible organics Chemistry; Metallurgy 32 Active
US8839860B2 In-situ Kerogen conversion and product isolation Emerging Cross-Sectional Technologies 31 Active
US9033033B2 Electrokinetic enhanced hydrocarbon recovery from oil shale Fixed Constructions 27 Active
US8104536B2 Kerogen extraction from subterranean oil shale resources Emerging Cross-Sectional Technologies 25 Active
US9133398B2 In-situ kerogen conversion and recycling Emerging Cross-Sectional Technologies 22 Active
US10197489B2 Processes and systems for characterizing and optimizing fracturing fluids Chemistry; Metallurgy 9 Active
US10677706B2 Processes and systems for characterizing and optimizing fracturing fluids Chemistry; Metallurgy 5 Active
US8997869B2 In-situ kerogen conversion and product upgrading Emerging Cross-Sectional Technologies 1 Active
US9291690B2 System and method for determining molecular structures in geological formations Physics 0 Active
US9181467B2 Preparation and use of nano-catalysts for in-situ reaction with kerogen Fixed Constructions 0 Active
US8992771B2 Isolating lubricating oils from subsurface shale formations Emerging Cross-Sectional Technologies 0 Active

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