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:
Oct. 27, 1992
Filed:
Jan. 02, 1992
Applicant:
Inventor:
Thomas F Swank, Sudbury, MA (US);
Assignee:
Nyacol Products, Inc., Ashland, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
2523131 ; 25231501 ; 2523635 ; 252309 ; 423617 ; 423618 ;
Abstract
Disclosed is a method for preparing aqueous negatively charged tin oxide sols having substantially uniform particle size no greater than about 50 nm and preferably from about 5 to about 20 nm, the sols being characterized as being substantially free of any other reagents which may adversely affect contemplated usage as a catalyst.