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. 01, 2011
Filed:
Jun. 12, 2007
Applicant:
Kyung-ju Choi, Louisville, KY (US);
Inventor:
Kyung-Ju Choi, Louisville, KY (US);
Assignee:
AAF-McQuay Inc., Louisville, KY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 39/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter media product and method of making the same wherein at least two filter media thicknesses of differing average coarse and fine fiber sizes are held in intertangled relationship forming a gradient density fibrous filter media with the fiber sizes having an overall average in successive thicknesses being either greater or less than the average fiber size of the intertangled fiber thickness(es).