Inventor · Waxahachie, TX, US

Nathan Kirk Powell

15Patents

4h-index

25Co-inventors

52Inventor score

Filing activity: May 17, 2007 → Dec 15, 2014

Most-cited inventions

Patent	Title	Area	Cited by	Status
US8304587B2	Process for producing ethanol using an extractive distillation column	Chemistry; Metallurgy	13	Active
US8173076B2	Method and apparatus for making acetic acid with improved light ends column productivity	Chemistry; Metallurgy	10	Active
US7619113B2	Method and apparatus for making acetic acid with improved purification	Chemistry; Metallurgy	6	Active
US8759576B2	Processes for purifying acetic anhydride	Chemistry; Metallurgy	5	Active
US7612232B2	Purification of acetic acid from wood acetylation process	Chemistry; Metallurgy	3	Active
US7989659B2	Method and apparatus for making acetic acid with improved light ends column productivity	Chemistry; Metallurgy	3	Active
US9000237B2	Ethanol refining process using intermediate reboiler	Chemistry; Metallurgy	2	Active
US8927784B2	Process to recover alcohol from an ethyl acetate residue stream	Chemistry; Metallurgy	1	Active
US8686200B2	Process to recover alcohol from an acidic residue stream	Emerging Cross-Sectional Technologies	1	Active
US8884080B2	Reduced energy alcohol separation process	Chemistry; Metallurgy	1	Active
US8754268B2	Process for removing water from alcohol mixtures	Chemistry; Metallurgy	0	Active
US9102581B2	Process for producing ethanol using an extractive distillation column	Chemistry; Metallurgy	0	Active
US8552226B2	Process for heat integration for ethanol production and purification process	Emerging Cross-Sectional Technologies	0	Active
US9073814B2	Process for heat integration for ethanol production and purification process	Emerging Cross-Sectional Technologies	0	Active
US9150478B2	Process to recover alcohol from an ethyl acetate residue stream	Chemistry; Metallurgy	0	Active

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