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:
Nov. 02, 1999
Filed:
Jun. 23, 1997
Applicant:
Inventors:
Hasso Von Blucher, Erkrath, DE;
Ernest De Ruiter, Leverkusen, DE;
Assignee:
MHB Filtration GmbH & Co. KG, Erkrath, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502426 ; 502434 ; 502418 ; 4234 / ;
Abstract
Granulated activated carbon is produced by an improved process which involves carbonizing pellets of a styrene-divinyl benzene copolymer matrix with concentrated sulfuric acid at temperatures up to at least 750.degree. C., followed by activation at temperatures of 800.degree. C. to 900.degree. C.