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:
Jun. 25, 2002
Filed:
Apr. 24, 2000
Applicant:
Inventors:
Howard Wallar, Worcester, MA (US);
Robert F. Quinlivan, Rutland, MA (US);
Sung H. Yu, Worcester, MA (US);
Assignee:
Saint-Gobain Industrial Ceramics, Inc., Worcester, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 3/512 ;
U.S. Cl.
CPC ...
C04B 3/512 ;
Abstract
It is found that calcining chromium oxide powders having a particle size component smaller than 10 microns reduces the volume proportion of smaller particles and increases the general uniformity of particle sizes in the distribution and the roundness of the particles.