Assignee
FENG SHAN
CN·4 granted patents·24 citations·filing 2014–2020
Top patents by PatentIndex Score
4 records- 0182US9652994B1Piano learning guidance systemFENG SHAN·Filed 2017·Granted May 16, 2017·6 cites·8 claims
- 0279USD965184SCandle tinFENG SHAN·Filed 2020·Granted Sep 27, 2022·9 cites·1 claims
- 0373US9245505B1Electric guitarFENG SHAN·Filed 2014·Granted Jan 26, 2016·4 cites·10 claims
- 0471US9224376B1Electric violinFENG SHAN·Filed 2014·Granted Dec 29, 2015·5 cites·9 claims
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