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:
May. 25, 2021
Filed:
Mar. 13, 2015
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Stefan Erren, Kallstadt, DE;
Dieter Schönhaber, Meckenheim, DE;
Martin Schachtl, Buchh, DE;
Pavel V. Osipov, Moscow, RU;
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21B 1/02 (2006.01); D21C 9/10 (2006.01); D21B 1/14 (2006.01);
U.S. Cl.
CPC ...
D21B 1/021 (2013.01); D21B 1/14 (2013.01); D21C 9/1005 (2013.01); D21C 9/1057 (2013.01); D21C 9/1063 (2013.01); D21C 9/1089 (2013.01);
Abstract
In a process for producing bleached mechanical woodpulp, said process comprising the steps of