US Patent 6993934 Dental glass powders
Patent 6993934 was granted and assigned to Cabot Corporation on February, 2006 by the United States Patent and Trademark Office.
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Patent abstract
Dental glass powders, methods for producing the powders and dental compositions including the glass powders. The powders preferably have a well-controlled particle size, narrow size distribution and a spherical morphology. The method includes forming the particles by a spray pyrolysis technique. The invention also includes dental filler and restorative compositions that include the glass powders.
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Patent Inventor Names
Daniel J. Skamser0
James H. Brewster0
Klaus Kunze0
Mark J. Hampden-Smith0
Paolina Atanassova0
Paul Napolitano0
Quint H. Powell0
Toivo T. Kodas0
Date of Patent
February 7, 2006
0Patent Application Number
106574550
Date Filed
September 8, 2003
0Patent Primary Examiner
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US Patent 6993934 Dental glass powders
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