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Julian Penketh
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Oldham, GB
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last 30 patents
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Patent Grant
Active noise cancellation system
Patent number
9,020,157
Issue date
Apr 28, 2015
Cirrus Logic International (UK) Limited
Julian Penketh
G10 - MUSICAL INSTRUMENTS ACOUSTICS
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last 30 patents
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Patent Application
ACTIVE NOISE CANCELLATION SYSTEM
Publication number
20130243214
Publication date
Sep 19, 2013
WOLFSON MICROELECTRONICS PLC
Julian Penketh
G10 - MUSICAL INSTRUMENTS ACOUSTICS