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. 13, 2004
Filed:
Mar. 13, 2002
Applicant:
Inventors:
Jürgen Heuser, Krefeld, DE;
Werner Verhoeven, Kalmthout, BE;
Domien Sluyts, Hoevenen, BE;
Gabriel Denecker, Kalmthout, BE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/68 ;
U.S. Cl.
CPC ...
C02F 1/68 ;
Abstract
Nitrate-containing (contaminated) solutions are reduced with SO gas in the presence of an at least equimolar amount of NH or ammonium salt.