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:
Sep. 02, 2003
Filed:
Mar. 18, 2002
Applicant:
Inventors:
Assignee:
Degussa AG, Duesseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
A61K 7/16 ; C01B 3/312 ;
U.S. Cl.
CPC ...
A61K 7/16 ; C01B 3/312 ;
Abstract
A silica comprising at least two silica fractions, wherein the at least two silica fractions differ by at least 10% in at least one of their BET surface area values, their CTAB surface area values or their DBP absorption values, the ranges of these three physicochemical properties being as follows: