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:
Feb. 17, 1998
Filed:
Dec. 10, 1996
Applicant:
Inventors:
Berndt-Ullrich Kohler, Lauro De Freitas, BR;
Manfred Eitel, Kempen, DE;
Gunter Linde, Krefeld, DE;
Herbert Kunstmann, Krefeld, DE;
Assignee:
Bayer AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C / ; C09C / ;
U.S. Cl.
CPC ...
106456 ; 106457 ; 106459 ; 106635 ; 252 6256 ; 423632 ; 423634 ;
Abstract
The present invention relates to a process for the preparation of iron oxide black pigment granules which are stable to handling.