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:
Dec. 19, 1989
Filed:
Jul. 10, 1987
Applicant:
Inventors:
Ralph P Hackl, North Vancouver, CA;
Frank R Wright, North Vancouver, CA;
Albert Bruynesteyn, North Vancouver, CA;
Assignee:
Giant Bay Biotech Inc., Burnaby, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C22B / ;
U.S. Cl.
CPC ...
435245 ; 4352524 ; 435262 ;
Abstract
Bacterial cultures of T. thiooxidans, T. ferrooxidans and L. ferrooxidans used to oxidize multimetallic sulfide ores are first adapted to high dissolved arsenic concentrations and low pH by subjecting the cultures in a solution containing dissolved arsenic, to successive incremental concentrations of arsenic while operating in a continuous mode.