US Patent 7794824 Carbon fibers from kraft softwood lignin

Patent 7794824 was granted and assigned to Weyerhaeuser on September, 2010 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Weyerhaeuser

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7794824

Date of Patent

September 14, 2010

Patent Application Number

11767612

Date Filed

June 25, 2007

Patent Citations Received

‌

US Patent 11993624 Methods for preparing thermally stable lignin fractions

‌

US Patent 11667981 Lignocellulosic conversion processes and products

Patent Primary Examiner

‌

Elizabeth M. Cole

Patent abstract

An acetylated softwood lignin fiber having a diameter of 5 to 100 microns.

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