Inventor · disambiguated record

Changqing Cai

Also filed as: CAI CHANGQING

3 granted patents·0 citations·filing 2016–2016

38Inventor score

Technology areasG01G

Files withNAT INSTITUTE OF METROLOGY3

Top patents by PatentIndex Score

3 records

0142US10274362B2Measuring device for measuring large mass with optical refraction and displacement measuringNAT INSTITUTE OF METROLOGY·Filed 2016·Granted Apr 30, 2019·0 cites·10 claims
0237US10378950B2High accuracy measuring device for measuring large massNAT INSTITUTE OF METROLOGY·Filed 2016·Granted Aug 13, 2019·0 cites·9 claims
0336US11835378B2Automatic large-mass-weight handling systemNAT INSTITUTE OF METROLOGY·Filed 2016·Granted Dec 5, 2023·0 cites·12 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →