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:
Apr. 20, 1993
Filed:
Feb. 21, 1992
Applicant:
Inventors:
Edward D Tolles, Charleston, SC (US);
Mitchell S Dimitri, Charleston, SC (US);
Charles C Matthews, Moncks Corner, SC (US);
Assignee:
Westvaco Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ; B01J / ; B01D / ;
U.S. Cl.
CPC ...
502416 ; 55 74 ; 55387 ; 123519 ; 502423 ; 502424 ; 502425 ; 502426 ; 502427 ;
Abstract
Lignocellulosic carbonaceous material is activated to produce a high activity, high density gas-phase activated carbon under conditions which effectively alter the particle pore size distribution to optimize the carbon's mesoporosity. Alternative processes are disclosed for producing the carbon, as are its application in emission control for vehicles.