Zhi Yu Yang

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Kowloon, CN

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Patents Grantslast 30 patents

Information Patent Grant
Sound attenuating structures
- Patent number 7,395,898
- Issue date Jul 8, 2008
- RSM Technologies Limited
- Zhi Yu Yang
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Sound attenuating structures
- Publication number 20050194209
- Publication date Sep 8, 2005
- RSM TECHNOLOGIES LIMITED
- Zhi Yu Yang
- G10 - MUSICAL INSTRUMENTS ACOUSTICS