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:
Apr. 28, 1992
Filed:
Jun. 06, 1988
Applicant:
Inventors:
Yehuda Niv, Rehovot, IL;
Moshe Levanon, Rehovot, IL;
Israel Grossinger, Rehovot, IL;
Benzion Landa, Edmonton, CA;
Yossi Adam, Rehovot, IL;
Assignee:
Spectrum Sciences B.V., Rotterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430137 ;
Abstract
A process for preparing a liquid toner compsition which includes the steps of combining first and second types of pigmented particles and mixing them together whereby the first type of pigmented particles acquire charges of a first polarity and the second type of pigmented particles acquire charges of a second polarity opposite to the first polarity.