HERAEUS TENEVO GMBH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2003/0167,801 Method for producing a full cylinder from quartz glassAbandonedDec 03, 02Sep 11, 03[C03B]
2003/0140,659 Method for producing an optical fibre and blank for an optical fibreAbandonedNov 22, 02Jul 31, 03[C03B]
5643069 Drill for drilling brittle materialsExpiredSep 21, 95Jul 01, 97[B23F]

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