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:
Jan. 23, 2007
Filed:
Apr. 22, 2004
Applicants:
Göran Karlsson, Helsingborg, SE;
Ingemar Karsson, Lidingö, SE;
Lennart Pettersson, Helsingborg, SE;
Michael Recktenwald, Helsingborg, SE;
Inventors:
Göran Karlsson, Helsingborg, SE;
Ingemar Karsson, Lidingö, SE;
Lennart Pettersson, Helsingborg, SE;
Michael Recktenwald, Helsingborg, SE;
Assignee:
Kemira Kemi AB, Helsingborg, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 11/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of treating, in wastewater purification, sludge containing organic matter, divalent iron and phosphorus, in which