Inventor record

QIU WEIJIAN

This page previously combined 3different people who filed under the same name. Pick the inventor you're looking for — each profile now covers one disambiguated person.

• 2Weijian Qiu2 patent records·0 citations·E21C E21D2 on this record
• 21QIU WEIJIAN2 patent records·0 citations·E21D2 on this record
• 12Weijian Qiu1 patent record·0 citations1 on this record

Inventor identities via PatentsView disambiguation — see methodology.