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. 22, 2003
Filed:
Aug. 21, 2000
Applicant:
Inventors:
William J. O'Donnell, Augusta, GA (US);
Paul Mazzell, Jr., Aiken, SC (US);
Lee G. Sprague, Augusta, GA (US);
Arthur J. Elliott, Sonoita, AZ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 4/500 ;
U.S. Cl.
CPC ...
C07C 4/500 ;
Abstract
A process for preparing isoflurane (1-chloro-2,2,2-trifluoroethyl difluoromethyl ether) by reacting PFE (2,2,2-trifluoroethyl difluoromethyl ether) with chlorine in the presence of ultraviolet light and added water, at a low temperature and/or at a high conversion.