Steven Llewellyn

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Thatcham, GB

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Patents Grantslast 30 patents

Information Patent Grant
Active noise cancelling ear phone system
- Patent number 9,473,845
- Issue date Oct 18, 2016
- Cirrus Logic, Inc.
- Richard Weil
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Earphone
- Patent number 9,245,515
- Issue date Jan 26, 2016
- Cirrus Logic International Semiconductor Ltd.
- Steven Llewellyn
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Noise cancellation system
- Patent number 9,154,868
- Issue date Oct 6, 2015
- Cirrus Logic International Semiconductor Ltd.
- Renjish Kodappully Narayan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
EARPHONE
- Publication number 20140153733
- Publication date Jun 5, 2014
- WOLFSON MICROELECTRONICS PLC
- Steven Llewellyn
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
ACTIVE NOISE CANCELLING EAR PHONE SYSTEM
- Publication number 20130266150
- Publication date Oct 10, 2013
- Wolfson Microelectonics plc
- Richard Weil
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
NOISE CANCELLATION SYSTEM
- Publication number 20130216060
- Publication date Aug 22, 2013
- WOLFSON MICROELECTRONICS PLC
- Renjish Kodappully Narayan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE