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. 20, 2010
Filed:
Jul. 11, 2007
Applicants:
Thomas J. Leck, Hockessin, DE (US);
Thomas Frank Saturno, New Castle, DE (US);
Gregory A. Bell, New Castle, DE (US);
Inventors:
Thomas J. Leck, Hockessin, DE (US);
Thomas Frank Saturno, New Castle, DE (US);
Gregory A. Bell, New Castle, DE (US);
Assignee:
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.