Powder composition for the preparation of an opaque dental porcelain in the form of a paste

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5679144
SERIAL NO

08659986

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A powder composition for the preparation of an opaque dental porcelain, containing as its components one or more feldspar frits consisting of a number of feldspar frits of different chemical compositions and different physical properties; CeO.sub.2 as the opacifier, optionally additional opacifiers; and optionally pigments.

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Patent Owner(s)

Patent OwnerAddress
VITA ZAHNFABRIK H RAUTER GMBH & COSPITAGLASSE 3 BAD SACKINGEN D-971

International Classification(s)

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  • 1996 Application Filing Year
  • C03C Class
  • 192 Applications Filed
  • 108 Patents Issued To-Date
  • 56.25 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances199619971998199920002001200220030255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Herbst, Kerstin Bensheim, DE 1 12
Thiel, Norbert Bad Sackingen, DE 36 414

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Patent Citation Ranking

  • 12 Citation Count
  • C03C Class
  • 47.66 % this patent is cited more than
  • 28 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges5117573120124423101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 90100 +0102030405060708090100110120130

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