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:
Mar. 25, 2014
Filed:
Sep. 07, 2007
Cheng-hang Chi, Midlothian, VA (US);
Hyun Sung Lim, Milothian, VA (US);
Cheng-Hang Chi, Midlothian, VA (US);
Hyun Sung Lim, Milothian, VA (US);
E I du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A filter including a filter medium with a pleated structure. The medium includes a nanoweb layer and a scrim, wherein the nanoweb layer contains fibers with a number average diameter less than 1 micron and layer thickness less than 50 microns. The ratio of total medium thickness-to-pleat spacing is less than 0.15 and the nanoweb layer has a basis weight of more than about 0.6 gsm. The nonwoven scrim can be a spunbond web, a dry-laid web, a wet-laid web, a cellulose fiber web, a melt blown web and a glass fiber web.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile