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. 11, 1995
Filed:
Jul. 02, 1993
Applicant:
Inventor:
Curtis L Knudson, Grand Forks, ND (US);
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
42324403 ; 95137 ; 502416 ;
Abstract
A method of removing polluting noxious substances from a flow of flue-gas including sulfur dioxide, nitric oxides and heavy metals is disclosed. The method consists of passing the flue-gas material through sized-reduced leonardite to assure that it will have a high display of adsorption capacities. The Leonardite is superior to commercially available carbonized char products such as activated carbon, as well as the traditional lignite coke material.