The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2016
Filed:
Jan. 14, 2015
Applicant:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Inventors:
James A. Dumesic, Verona, WI (US);
Stephanie G. Wettstein, Madison, WI (US);
David Martin Alonso, Madison, WI (US);
Elif Ispir Gurbuz, Madison, WI (US);
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/33 (2006.01); C07C 51/48 (2006.01);
U.S. Cl.
CPC ...
C07D 307/33 (2013.01); C07C 51/48 (2013.01);
Abstract
A method to produce levulinic acid (LA) and gamma-valerolactone (GVL) from biomass-derived cellulose or lignocellulose by selective extraction of LA using GVL and optionally converting the LA so isolated into GVL, with no purifications steps required to yield the GVL.