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:
Nov. 09, 1993
Filed:
Sep. 15, 1992
Applicant:
Inventor:
Hsu-Nan Huang, Newark, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
20415787 ; 20415794 ; 20415811 ;
Abstract
A liquid phase process for preparing .omega.-haloperfluoroacid chlorides by the photo oxidation of polyfluoroalkyl mono- and di-chloromethanes in the presence of chlorine using light wavelengths greater than 280 nm.
Huang, Hsu-Nan. (1993). Process for omega-halo-perfluoro acid chlorides (U.S. Patent No. 5259938). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5259938
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile