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US Patent 9554789 Expandable dilator
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Patent
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Date Filed
April 16, 2014
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Date of Patent
January 31, 2017
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Patent Application Number
14253899
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Patent Citations Received
US Patent 11832847 Expanders for rod retraction
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US Patent 12133643 Instrumentation and methods for the implantation of spinal implants
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US Patent 12102353 Expanders for rod retraction
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US Patent 11925342 Lateral access system for the lumbar spine
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Patent Inventor Names
Alfred Niederberger
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Johann Fierlbeck
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Silas Zurschmiede
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Tom Overes
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Patent Jurisdiction
United States Patent and Trademark Office
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Patent Number
9554789
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Patent Primary Examiner
Jacqueline Johanas
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