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:
May. 21, 1991
Filed:
Dec. 29, 1989
Applicant:
Inventors:
Jean-Yves Chane-Ching, Paris, FR;
Jean-Yves Dumousseau, Paris, FR;
Assignee:
Rhone-Pulenc Specialites Chimique, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F / ;
U.S. Cl.
CPC ...
423263 ; 592304 ; 592439 ;
Abstract
Morphologically improved cerium oxide particulates useful, e.g., as catalysts/catalyst supports, and having a B.E.T. specific surface of from 100 to 130 m.sup.2 /g, measured at a temperature ranging from 400.degree. C. to 450.degree. C., are prepared by hydrolyzing an aqueous solution of a cerium (IV) salt in an acidic medium, filtering the precipitate of hydrolysis which results, washing and optionally drying said precipitate, and thence calcining same.
Chane-Ching, Jean-Yves. (1991). Novel cerium oxide particulates (U.S. Patent No. 5017352). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5017352
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile