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:
Mar. 26, 1991
Filed:
Feb. 23, 1990
Applicant:
Inventors:
Klaus Deller, Hainburg, DE;
Rainhard Klingel, Alzenau, DE;
Helmfried Krause, Rodenbach, DE;
Klaus-P Bauer, Doernigheim, DE;
Assignee:
Degussa Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
502263 ; 502 62 ; 502 63 ;
Abstract
A molded; i.e. pressed, article based on a pyrogenically produced system of mixed oxides of silicon dioxide and aluminum oxide and having the following physical-chemical features: