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:
Nov. 24, 1998
Filed:
May. 06, 1997
Applicant:
Inventors:
Hans-Josef Sterzel, Dannstadt-Schauernheim, DE;
Werner Hesse, Obrigheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C01G / ;
U.S. Cl.
CPC ...
501103 ; 501152 ; 423608 ;
Abstract
In the preparation of pulverulent zirconium dioxide by dissolving a zirconium compound in formic acid, removing the volatile components and calcining the residue, a chloride-free zirconium compound is dissolved in a formic acid/water mixture and the zirconium dioxide is obtained in a manner known per se.
Sterzel, Hans-Josef. (1998). Preparation of pulverulent zirconium dioxide (U.S. Patent No. 5840641). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5840641
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile