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:
Jul. 31, 2018
Filed:
Jul. 30, 2016
Applicants:
Baxter International Inc., Deerfield, IL (US);
Baxter Healthcare SA, Glattpark (Opfikon), CH;
Inventors:
Yongxian Zeng, Libertyville, IL (US);
Hong-Chang Lee, Libertyville, IL (US);
Linas Kudzma, Annandale, NJ (US);
Assignees:
BAXTER INTERNATIONAL INC., Deerfield, IL (US);
BAXTER HEALTHCARE SA, Glattpark (Opfikon), CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/34 (2006.01); C07C 41/42 (2006.01);
U.S. Cl.
CPC ...
C07C 41/42 (2013.01); C07C 41/34 (2013.01);
Abstract
A method of purifying crude sevoflurane comprising (i) providing crude sevoflurane and an aqueous base to a first centrifugal separator, wherein the crude sevoflurane comprises sevoflurane and hexafluoroisopropanol; (ii) mixing the crude sevoflurane and the aqueous base in the first centrifugal separator; and (iii) separating the sevoflurane from the aqueous base in the first centrifugal separator, thereby purifying the crude sevoflurane.