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:
Sep. 07, 2004
Filed:
Dec. 04, 2001
Applicant:
Inventor:
Walter Heitmann, Gross-Bieberau, DE;
Assignee:
Deutsche Telekom AG, Bonn, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H 8/100 ;
U.S. Cl.
CPC ...
B65H 8/100 ;
Abstract
A method for manufacturing preforms for polymer optical fibers having an index of refraction that is variable over the radius, in which a core of preform material is coated with coating material for forming the preform until a predefinable diameter is reached, the refractive index of the coating material being varied in conformance with a predefinable profile along the radius of the emerging preform.