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:
May. 10, 1994
Filed:
May. 29, 1992
Applicant:
Inventors:
Werner Stieb, Stadthagen, DE;
Johann Schulte, Stadthagen, DE;
Assignee:
Kabelmetal Electro GmbH, Pforzheim, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385140 ; 385 96 ; 385 31 ; 385 39 ;
Abstract
An optical attenuation device is described, for example for integration into optical transmission systems wherein the attenuation device is a fusion coupler (4) with an inlet (4a) and an outlet (4b), as well as at least one other inlet or outlet (4c, 4d), and the at least other inlet or outlet (4c, 4d) is closed off reflection-free (6).