Lawrence Jin-Sung Ham

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Anna, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Drum Wah
- Patent number 10,783,860
- Issue date Sep 22, 2020
- Lawrence Jin-Sung Ham
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Drum Wah
- Publication number 20190311700
- Publication date Oct 10, 2019
- Lawrence Jin-Sung Ham
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Drum Wah
- Publication number 20160335992
- Publication date Nov 17, 2016
- Lawrence Jin-Sung Ham
- G10 - MUSICAL INSTRUMENTS ACOUSTICS