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. 20, 1999
Filed:
Jul. 03, 1996
Applicant:
Inventors:
Charles Francis Swain, Williamsville, NY (US);
Rajiv Ratna Singh, Getzville, NY (US);
Hang Thanh Pham, Amherst, NY (US);
Assignee:
AlliedSignal Inc., Morristown, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C07C / ;
U.S. Cl.
CPC ...
423483 ; 570177 ;
Abstract
The invention provides a process for the separation of azeotropic mixtures of fluorocarbons from hydrogen fluoride. The most preferred fluorocarbon for this invention is 1,1,1,3,3-pentafluoropropane, which is also known as HFC-245fa. The separation in conducted by adding sulfuric acid to the mixture while the mixture is in either the liquid or gaseous states.
Swain, Charles. (1999). Separation of hydrogen fluoride from a fluorocarbon/hydrogen fluoride (U.S. Patent No. 5895639). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5895639
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile