Inventor · disambiguated record

Qionglin Zheng

Also filed as: ZHENG QIONGLIN

1 granted patent·0 citations·filing 2016–2016

2Inventor score

Technology areasY02T

Files withBEIJING EFFICIENGINE TECH LLC1

Top patents by PatentIndex Score

1 record

0119US10744880B2Negative voltage backflow direct current supply system for rail transportBEIJING EFFICIENGINE TECH LLC·Filed 2016·Granted Aug 18, 2020·0 cites·10 claims

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