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:
May. 28, 2019
Filed:
Dec. 19, 2014
Applicant:
The Procter & Gamble Company, Cincinnati, OH (US);
Inventors:
Pamela Marie Morison, Cincinnati, OH (US);
Rajeev Chhabra, Mason, OH (US);
Dana Paul Gruenbacher, Fairfield, OH (US);
David Wesley Monebrake, Eaton, OH (US);
Susan L Wilking, Mainville, OH (US);
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/08 (2006.01); B01D 39/16 (2006.01); B01D 46/00 (2006.01); B01D 46/02 (2006.01); F04D 25/08 (2006.01); F04D 29/32 (2006.01); F04D 29/70 (2006.01);
U.S. Cl.
CPC ...
B01D 46/0041 (2013.01); B01D 39/08 (2013.01); B01D 39/1623 (2013.01); B01D 46/02 (2013.01); F04D 25/08 (2013.01); F04D 29/325 (2013.01); F04D 29/701 (2013.01); B01D 2239/064 (2013.01); B01D 2239/065 (2013.01); B01D 2239/069 (2013.01); B01D 2239/0663 (2013.01); B01D 2239/1233 (2013.01);
Abstract
A method of filtering air using a composite filter substrate having a mixture of fiber shapes and sizes layer is disclosed. The method provides improved particle cleaning efficiency.