Assignee
WELEAD INFRASTRUCTURE ENGINEERING TECH (ZHENGZHOU) LTD
CN·5 granted patents·1 pending application·0 citations·filing 2020–2022
Top patents by PatentIndex Score
6 records- 0164US11085166B2Composite slotting equipment combined static pressure and vibration of polymer anti-seepage wall and using method thereofWELEAD INFRASTRUCTURE ENGINEERING TECH ZHENGZHOU LTD·Filed 2020·Granted Aug 10, 2021·0 cites·9 claims
- 0263US12428519B2Silicate modified polymer foam material for filling and sealingWELEAD INFRASTRUCTURE ENGINEERING TECH ZHENGZHOU LTD·Filed 2022·Granted Sep 30, 2025·0 cites·2 claims
- 0361US2020256027A1Composite slotting equipment combined static pressure and vibration of polymer anti-seepage wall and using method thereofWELEAD INFRASTRUCTURE ENGINEERING TECH (ZHENGZHOU) LTD·Filed 2020·Application pending·0 cites
- 0448US11274784B2In-service repair method combining externally bonded pre-stressed FRP and polymer grouting for PCCP with broken wireWELEAD INFRASTRUCTURE ENGINEERING TECH ZHENGZHOU LTD·Filed 2020·Granted Mar 15, 2022·0 cites·10 claims
- 0545US11079057B2Trenchless rehabilitation device for disconnects on large-diameter concrete drainage pipe and method thereofWELEAD INFRASTRUCTURE ENGINEERING TECH ZHENGZHOU LTD·Filed 2020·Granted Aug 3, 2021·0 cites·10 claims
- 0643US11002398B2Trenchless rehabilitation system for deformation of large diameter HDPE pipelines and method thereofWELEAD INFRASTRUCTURE ENGINEERING TECH ZHENGZHOU LTD·Filed 2020·Granted May 11, 2021·0 cites·13 claims
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