Inventor · disambiguated record
Zhaoshan Cheng
Also filed as: CHENG ZHAOSHAN
2 granted patents·0 citations·filing 2017–2018
22Inventor score
Top patents by PatentIndex Score
2 records- 0149US11072551B2Water filtration system with recirculation to reduce total dissolved solids creep effectSMITH CORP A O·Filed 2017·Granted Jul 27, 2021·0 cites·9 claims
- 0240US10835871B2Water purifier and water preparation method thereofSMITH A O CHINA WATER HEATER·Filed 2018·Granted Nov 17, 2020·0 cites·23 claims
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