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. 25, 1999
Filed:
Jun. 03, 1997
Applicant:
Inventors:
James T Dew, Jeannette, PA (US);
Larry R Evans, Jeannette, PA (US);
Diana L Scott, Derry, PA (US);
Walter H Waddell, Pittsburgh, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
426-2 ; 426 72 ; 426807 ; 423335 ; 524492 ; 524493 ;
Abstract
Substantially dry free-flowing particles of amorphous precipitated silica have large sizes and large carrying capacities for organic liquids, and they contain little or no dust.
Dew, James. (1999). Amorphous precipitated silica having large liquid carrying capacity (U.S. Patent No. 5906843). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5906843
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile