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. 06, 2001
Filed:
Oct. 20, 1998
Applicant:
Inventors:
Peter Ping-Yi Tsai, Knoxville, TN (US);
Charles B. Hassenboehler, Knoxville, TN (US);
Larry C. Wadsworth, Knoxville, TN (US);
Gretta Heismeyer, Lenoir City, TN (US);
Assignee:
The University of Tennessee Research Corporation, Knoxville, TN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D04H 1/56 ;
U.S. Cl.
CPC ...
D04H 1/56 ;
Abstract
This invention is directed towards a porous composite having an inlet face and an exit face and further comprises intermingled meltblown fibers and staple fibers which define a density gradient from coarse pores at the inlet face to fine pores at the exit face.