Method for Producing a Tubular Semifinished Product From Fluorine-Doped Quartz Glass

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United States of America Patent

APP PUB NO 20090260400A1
SERIAL NO

12227195

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Abstract

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particles by means of plasma burners and in the presence of fluorine, and depositing said particles in layers on the cylindrical outer surface of the substrate tube rotating about its longitudinal axis with formation of a mother tube consisting of fluorine-doped quartz glass; and (c) elongating the mother tube in an elongation process to obtain the tubular semifinished product.

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Patent Owner(s)

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HERAEUS QUARZGLAS GMBH & CO KGHANAU

International Classification(s)

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  • 2007 Application Filing Year
  • C03B Class
  • 263 Applications Filed
  • 146 Patents Issued To-Date
  • 55.52 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200720082009201020112012201320142015201620172018201920200255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Braeuer, Karsten Bruchkoebel , DE 11 41
Schoetz, Gerhard Aschaffenburg , DE 11 56

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  • 3 Citation Count
  • C03B Class
  • 8.09 % this patent is cited more than
  • 16 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges11942261201 - 1011 - 2021 - 3041 - 5051 - 6005101520253035404550556065707580859095100

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