Inventor · disambiguated record
Huiqiang Duan
Also filed as: DUAN HUIQIANG
2 granted patents·1 pending application·2 citations·filing 2018–2020
33Inventor score
Top patents by PatentIndex Score
3 records- 0158US10787906B2Roadway forming method by expanding excavating and filling gangue paste in thick coal seamUNIV SHANDONG SCIENCE & TECH·Filed 2018·Granted Sep 29, 2020·2 cites·10 claims
- 0228US12090595B2Horizontal five-axis plate conversion machining centerKEDE NUMERICAL CONTROL CO LTD·Filed 2020·Granted Sep 17, 2024·0 cites·6 claims
- 0328US2020024944A1Method of mining single steeply-inclined thick coal seamUNIV SHANDONG SCIENCE & TECH·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →