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:
Aug. 22, 2000
Filed:
Apr. 14, 1998
Applicant:
Inventors:
Theresa A Pecoraro, Danville, CA (US);
Ignatius Y Chan, Novato, CA (US);
Darryl K Whaley, Vallejo, CA (US);
Pamela R Auburn, Houston, TX (US);
Assignee:
Chevron Chemical Company LLC, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502233 ; 502234 ; 502256 ; 502238 ; 526 89 ;
Abstract
Silica powders and mixed silica-oxide powders and methods of preparing such powders for use as catalyst supports for polymerization processes.