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:
Aug. 17, 2004
Filed:
Jul. 24, 2002
Applicant:
Inventors:
Byung-Gwon Lee, Seoul, KR;
Jong-Sung Lim, Seoul, KR;
Sang Deuk Lee, Seoul, KR;
Chang-Nyeon Kim, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 5/04 ;
U.S. Cl.
CPC ...
C09K 5/04 ;
Abstract
A refrigerant composition that can be a substitute for chlorodifluoromethane (HCFC-22) comprises: (a) a first constituent of difluoromethane, (b) a second constituent of 1,1,1-trifluoroethane, (c) a third constituent of 1,1-difluoroethane, and (d) a fourth constituent selected from the group consisting of 1,1,1,2,3,3,3-heptafluoropropane, isobutane, 1,1,1,2,3,3-hexafluropropane and butane.
Lee, Byung-Gwon. (2004). Refrigerant composition comprising difluoromethane, 1,1,1-trifluoroethane and 1,1-difluoroethane (U.S. Patent No. 6776922). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6776922
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile