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:
Apr. 03, 1979
Filed:
Feb. 22, 1977
Applicant:
Inventors:
Gunter Kratel, Durach-Bechen, DE;
Gunter Stohr, Durach-Bechen, DE;
Ludwig Eberle, Lenzfried, DE;
Ernst Muhlhofer, Durach, DE;
Assignee:
Wacker-Chemie GmbH, Munich, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C09C / ;
U.S. Cl.
CPC ...
423336 ; 1062 / ; 1063 / ; 424 49 ;
Abstract
A process for the manufacture of highly dispersed silicon dioxide with improved thickening action by treatment of pyrogenically produced silicic acid comprising the following steps: