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.

Date of Patent:
Oct. 09, 2007

Filed:

Jan. 26, 2004
Applicants:

Julian P Breillatt, Jr., Mundelein, IL (US);

John C Burnham, Lake Zurich, IL (US);

Allen R Wons, Antioch, IL (US);

Randy Murphy, Pleasant Prairie, WI (US);

Daryl R Calhoun, Green Oaks, IL (US);

Daniel R Lynn, Spring Grove, IL (US);

Inventors:

Julian P Breillatt, Jr., Mundelein, IL (US);

John C Burnham, Lake Zurich, IL (US);

Allen R Wons, Antioch, IL (US);

Randy Murphy, Pleasant Prairie, WI (US);

Daryl R Calhoun, Green Oaks, IL (US);

Daniel R Lynn, Spring Grove, IL (US);

Assignee:

Fenwal, Inc., Lake Zurich, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 35/00 (2006.01); B32B 37/00 (2006.01); B32B 37/06 (2006.01); B29C 65/02 (2006.01); B29C 65/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of making a blood filter assembly provides first and second filter housing elements from a flexible thermoplastic material, each of the first and second housing elements including a molded port. The method places a filter media between the first and second filter housing elements and applies radio frequency heating and pressure to form a peripheral seal that joins the first and second filter housing elements to the filter media and encapsulates the filter media between the first and second housing elements.


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