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:
Mar. 13, 2018
Filed:
Dec. 22, 2016
Applicant:
Neste Oyj, Espoo, FI;
Inventor:
Sami Toppinen, Espoo, FI;
Assignee:
NESTE OY J, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/33 (2006.01); C07D 307/32 (2006.01); C07C 51/367 (2006.01);
U.S. Cl.
CPC ...
C07D 307/33 (2013.01); C07C 51/367 (2013.01); C07D 307/32 (2013.01);
Abstract
A process is disclosed for converting levulinic acid to gammavalerolactone with increased selectivity. The process is based on the recognition of the reaction intermediate, 4-hydroxyvaleric acid, and improved conversion thereof.
Toppinen, Sami. (2018). Selective process for conversion of levulinic acid to gammavalerolactone (U.S. Patent No. 9914714). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9914714
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile