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:
Dec. 08, 1992
Filed:
Dec. 11, 1991
Applicant:
Inventors:
Hyun N Yoon, New Providence, NJ (US);
Frank J Onorato, Phillipsburg, NJ (US);
John P Riggs, New Providence, NJ (US);
Assignee:
Hoechst Celanese Corp., Somerville, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385130 ; 385143 ; 385145 ; 385122 ;
Abstract
This invention provides superior electrooptic devices containing an organic polymeric waveguiding medium, and a process of fabricating such devices. The fabrication process utilizes a substantially stress-free organic polymeric substrate on top of which the necessary organic layers are successively deposited. The substrate is so selected that its thermal expansion coefficient is substantially close to that of the cladding layers and of the waveguiding layer.