MD

Mingrui Du

S( Safekey Engineering Technology (Zhengzhou): 2 patents #14 of 39Top 40%
Overall (All Time): #1,739,461 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12428519 Silicate modified polymer foam material for filling and sealing Peng Zhao, Hongyuan Fang, Lei Wang, Chengchao Guo, Chao Zhang +1 more 2025-09-30
11970564 Structural flame retardant high strength low exothermic polymer grouting material for consolidating Peng Zhao, Hongyuan Fang, Lei Wang, Chengchao Guo, Chao Zhang +1 more 2024-04-30