Inventor · disambiguated record

Yanfeng Qi

Also filed as: QI YANFENG

0 granted patents·2 pending applications·0 citations·filing 2019–2021

Technology areasC21D

Files withBAOSHAN IRON & STEEL2

Top patents by PatentIndex Score

2 records

0149US2021164078A1Spring steel having superior fatigue life, and manufacturing method for sameBAOSHAN IRON & STEEL·Filed 2019·Application pending·0 cites
0246US2023175093A1Process for smelting steel for ultrafine carborundum wireBAOSHAN IRON & STEEL·Filed 2021·Application pending·0 cites

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