Inventor · disambiguated record

Jianjie Duan

Also filed as: DUAN JIANJIE

1 granted patent·2 citations·filing 2020–2020

19Inventor score

Technology areasE21D

Files withUNIV XIAN SCI & TECHNOLOGY1

Top patents by PatentIndex Score

1 record

0171US10989051B2Multi-section non-pillar staggered protected roadway for deep inclined thick coal seam and method for coal pillar filling between sectionsUNIV XIAN SCI & TECHNOLOGY·Filed 2020·Granted Apr 27, 2021·2 cites·18 claims

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