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Manli Zhu Qi Li

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Microphone Array System

13/49,877 | U.S. Patent Application

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Location ELECTRONIC

Filed March 16, 2011

Examiner XUEJUN ZHAO

Class 381

Art Group 2653

Patent No. 8,861,756

Case Type Utility - 381/300000

Status Patented Case

Parent 61/403,952 Expired

Child 15/293,626 Patented

Child 16/52,623 Pending

Last Updated: 4 years, 7 months ago

Date	#	Transaction
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Microphone Array System

13/49,877 | U.S. Patent Application

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