Cao Cheng

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Union City, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for providing passive amplification
- Patent number 9,183,826
- Issue date Nov 10, 2015
- Nokia Technologies Oy
- Jyri Salomaa
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Apparatus
- Publication number 20120237058
- Publication date Sep 20, 2012
- Nokia Corporation
- Jyri Salomaa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE