US Patent 10271994 Passive noise canceling device

Patent 10271994 was granted and assigned to Brunel University London on April, 2019 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Brunel University London

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

102719940

Patent Inventor Names

Mark Atherton0

Date of Patent

April 30, 2019

Patent Application Number

150055360

Date Filed

January 25, 2016

Patent Primary Examiner

‌

Forrest M Phillips

Patent abstract

A device for use by a dental patient fits in the patient's ear and has at least one curved resonator tube to reduce the perceived volume of a dental drill. The device can have multiple layers of resonator tubes and a port into which recorded music can be played to calm the patient further.