Doctors Research Group

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0031,578 Methods of performing medical procedures which promote bone growth, compositions which promote bone growth, and methods of making such compositionsAbandonedMar 24, 04Feb 10, 05[A61K, C08G]
6520281 Elastomeric anti-microbial stethoscope diaphragmExpiredAug 18, 00Feb 18, 03[A61B]
6513621 Method of producing and making use of ear tips having a filled airtight chamberExpiredAug 15, 00Feb 04, 03[H04R]

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