Assignee
ZHANG QIFENG
US·3 granted patents·17 citations·filing 2011–2018
Top patents by PatentIndex Score
3 records- 0168USD887389SCombined wireless speaker and lampZHANG QIFENG·Filed 2018·Granted Jun 16, 2020·13 cites·1 claims
- 0245USD867803SFrying and baking deviceZHANG QIFENG·Filed 2018·Granted Nov 26, 2019·4 cites·1 claims
- 0343US8558107B2Dye-sensitized solar cell employing zinc oxide aggregates grown in the presence of lithiumZHANG QIFENG·Filed 2011·Granted Oct 15, 2013·0 cites·11 claims
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