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:
Aug. 11, 1992
Filed:
Sep. 28, 1989
Applicant:
Inventors:
Hans-Tobias Macholdt, Darmstadt, DE;
Adolf Kroh, Selters, DE;
Alexander Sieber, Frankfurt am Main, DE;
Erwin Dietz, Kelkheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; C09B / ;
U.S. Cl.
CPC ...
106495 ; 106493 ; 106494 ; 106496 ; 106497 ; 430 45 ; 430 47 ; 430106 ; 430109 ; 430110 ; 430115 ; 546 49 ; 546 56 ; 546 57 ; 546103 ;
Abstract
Quinacridones having selectively adjusted triboelectric effects, which quinacridones contain about 0.05% to 100 percent by weight of triboelectrically active compounds of the general formula I