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. 07, 1998
Filed:
Jan. 08, 1997
Applicant:
Inventors:
Assignee:
Degussa Aktiengesellschaft, Frankfurt, DE;
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436 72 ; 436164 ; 73 6142 ;
Abstract
The thickening effect of flame hydrolysis produced silicon dioxide is determined by making a dispersion of the flame hydrolysis produced silicon dioxide in a liquid such as water or ethanol and measuring the turbidity of this dispersion.