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:
Jul. 15, 1980
Filed:
Dec. 27, 1978
Applicant:
Inventor:
Suguru Fukui, Tokyo, JP;
Assignee:
Chiyoda Kako Kensetsu Kabushiki Kaisha, Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
423235 ;
Abstract
Exhaust or waste gas containing nitrogen oxides is contacted with an aqueous solution containing urea and a catalytic amount of bromine or/and chlorine ion.