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:
Jan. 06, 2026
Filed:
Sep. 08, 2021
Applicant:
Westrock Mwv, Llc, Atlanta, GA (US);
Inventors:
Fritz G. Paulsen, Summerville, SC (US);
John D. Dejarnette, Henrico, VA (US);
Peter W. Hart, Atlanta, GA (US);
Assignee:
WestRock MWV, LLC, Atlanta, GA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21C 3/02 (2006.01); D21D 1/30 (2006.01); D21H 11/04 (2006.01);
U.S. Cl.
CPC ...
D21C 3/022 (2013.01); D21D 1/30 (2013.01); D21H 11/04 (2013.01);
Abstract
A pulping method includes chemical cooking of softwood chips to retain a high lignin content of about 18% to about 28% by weight and fiberization of the cooked softwood chips to a low residual wood shive content of at most 15% by weight.