Inventor · disambiguated record
Changlong Du
Also filed as: DU CHANGLONG
2 granted patents·1 pending application·3 citations·filing 2016–2025
36Inventor score
Top patents by PatentIndex Score
3 records- 0171US10233755B2Drilling and bursting heading machineUNIV CHINA MINING·Filed 2016·Granted Mar 19, 2019·3 cites·8 claims
- 0267US2025323728A1System and signal generation methodHUAWEI TECH CO LTD·Filed 2025·Application pending·0 cites
- 0341US11199092B2Hard rock roadway and tunnel boring machine with actively rotating hobsUNIV CHINA MINING·Filed 2019·Granted Dec 14, 2021·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →