US Patent 8323837 Porous film

Patent 8323837 was granted and assigned to Sumitomo Chemical on December, 2012 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Sumitomo Chemical

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

8323837

Patent Inventor Names

Yasunori Nishida0

Hiroyuki Sato0

Yasuo Shinohara0

Date of Patent

December 4, 2012

Patent Application Number

12532315

Date Filed

March 19, 2008

Patent Citations Received

‌

US Patent 11767615 Hollow porous fibers

‌

US Patent 11965083 Polyolefin material having a low density

Patent Primary Examiner

Robert Sellers

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