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:
Mar. 03, 1987
Filed:
Jan. 02, 1985
Applicant:
Inventors:
Helmut Formanek, Garching, DE;
Reinhard Weyl, Assling, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; C09K / ; C09K / ; C09K / ;
U.S. Cl.
CPC ...
427164 ; 427168 ; 427169 ; 427165 ; 2522991 ; 2522994 ; 2522997 ; 428-1 ;
Abstract
A method for the orientation of a liquid crystalline substance with respect to a substrate to which the substance is to be applied, the method comprising treating the surface of the substrate prior to application of the substance with a solution of at least one steroid, or at least one porphyrin dyestuff or both.