Inventor · disambiguated record
Qingchuan Feng
Also filed as: FENG QINGCHUAN
1 granted patent·3 pending applications·0 citations·filing 2020–2024
6Inventor score
Technology areasB23K
Top patents by PatentIndex Score
4 records- 0161US2025276399A1Narrow-gap/ultra-narrow-gap mag/mig welding gun and nozzle thereofChina construction steel structure co ltd·Filed 2024·Application pending·0 cites
- 0245US11904412B2Production line of H-shaped steel and production methodCHINA CONSTR SCI & IND CO LTD·Filed 2020·Granted Feb 20, 2024·0 cites·13 claims
- 0339US2022203484A1Steel structure welding deviceCHINA CONSTR SCI & IND CO LTD·Filed 2020·Application pending·0 cites
- 0439US2022134346A1Welding slag cleaning device, welding machine head and welding systemCHINA CONSTR SCI & IND CO LTD·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →