Assignee
SAFEKEY ENGINEERING TECH ZHENGZHOU LTD
CN·4 granted patents·2 pending applications·0 citations·filing 2022–2023
Top patents by PatentIndex Score
6 records- 0166US11970564B2Structural flame retardant high strength low exothermic polymer grouting material for consolidatingSAFEKEY ENGINEERING TECH ZHENGZHOU LTD·Filed 2022·Granted Apr 30, 2024·0 cites·5 claims
- 0265US2023045296A1Silicate-modified high-toughness and low-heat polymer grouting material for reinforcementSAFEKEY ENGINEERING TECH ZHENGZHOU LTD·Filed 2022·Application pending·0 cites
- 0364US12152360B2Vibratory grouting drilling rig with auxiliary moving mechanismSAFEKEY ENGINEERING TECH ZHENGZHOU LTD·Filed 2023·Granted Nov 26, 2024·0 cites·13 claims
- 0460US12371869B2Grouting pipe with vibration functionSAFEKEY ENGINEERING TECH ZHENGZHOU LTD·Filed 2023·Granted Jul 29, 2025·0 cites·6 claims
- 0557US12441921B2Silicate-modified polymer grouting material for leakage pluggingSAFEKEY ENGINEERING TECH ZHENGZHOU LTD·Filed 2022·Granted Oct 14, 2025·0 cites·2 claims
- 0652US2023323621A1Grouting double-locking pressure real-time sensing system and method for operating the sameSAFEKEY ENGINEERING TECH ZHENGZHOU LTD·Filed 2023·Application pending·0 cites
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