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:
Apr. 17, 2018
Filed:
Mar. 02, 2015
Applicant:
Gfbiochemicals Limited, Valletta, MT;
Inventors:
Brian D. Mullen, Delano, MN (US);
Vivek Badarinarayana, St. Louis Park, MN (US);
Assignee:
GFBIOCHEMICALS LIMITED, , MT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 59/00 (2006.01); C07C 51/48 (2006.01); B01D 11/04 (2006.01);
U.S. Cl.
CPC ...
C07C 51/48 (2013.01); B01D 11/0426 (2013.01); B01D 11/0492 (2013.01);
Abstract
The invention describes processes to selectively remove or reduce the mineral acid content substantially from compositions comprising a solvent and levulinic acid, wherein the levulinic acid was derived from the reaction between various biomass materials and a mineral acid or an organic acid catalyst.