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:
Dec. 13, 2011
Filed:
May. 14, 2008
Applicants:
Mark Brandon Shiflett, Wilmington, DE (US);
Akimichi Yokozeki, Wilmington, DE (US);
Inventors:
Mark Brandon Shiflett, Wilmington, DE (US);
Akimichi Yokozeki, Wilmington, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 15/04 (2006.01); C02F 1/42 (2006.01); B01D 11/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for separating the diastereomers of a compound such as dihydrodecafluoropentane by using an ionic liquid to increase separation efficiency. The process may involve separation of the threo and erythro diastereomers of HFC-4310mee by liquid-liquid extraction wherein at least one ionic liquid is used as the extractant.
Shiflett, Mark. (2011). Process for the separation of diastereomers (U.S. Patent No. 8075777). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8075777
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile