US Patent 6899948 Dental materials with nano-sized silica particles
Patent 6899948 was granted and assigned to 3M on May, 2005 by the United States Patent and Trademark Office.
Is a
Current Assignee
0
Date Filed
April 15, 2002
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Date of Patent
May 31, 2005
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Patent Application Number
10122767
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Patent Inventor Names
Brant Ulrick Kolb
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Bradley Dene Craig
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Douglas Alan Hanggi
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Xiaodong Zhang
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Patent Jurisdiction
Patent Number
Patent Primary Examiner
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