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, 2003
Filed:
Jun. 17, 1999
Applicant:
Inventor:
Richard A. Hayden, Pittsburgh, PA (US);
Assignee:
Calgon Carbon Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 3/100 ;
U.S. Cl.
CPC ...
C01B 3/100 ;
Abstract
A carbonaceous char is disclosed for the removal of metals from aqueous and other non-organic media. Carbonaceous chars having a normalized contact pH of less than 3 and preferably less than or equal to 2.5 provide enhanced metal removal from such media.