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:
Jan. 14, 1986
Filed:
Feb. 09, 1984
Applicant:
Inventor:
Max Kuisl, Ulm, DE;
Assignee:
Licentia Patent-Verwaltungs-GmbH, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65-312 ; 65 182 ; 4272552 ;
Abstract
A method of producing a preform for light waveguides wherein glass-forming chlorides, e.g. SiCl.sub.4 and/or GeCl.sub.4, are reacted with water vapor to form a glass forming layer, e.g. SiO.sub.2 soot. This reaction advantageously takes place at relatively low temperatures, e.g. 20.degree. C.-800.degree. C. Surprisingly, almost no SiO.sub.2 deposition takes place on higher heated surfaces, e.g. in the reaction chamber. Elimination of annoying OH.sup.- ions is possible.
Kuisl, Max. (1986). Method for producing a preform for light waveguides (U.S. Patent No. 4564378). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4564378
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