HF

Hongyuan Fang

S( Safekey Engineering Technology (Zhengzhou): 1 patents #1 of 5Top 20%
Overall (2022): #31,969 of 548,613Top 6%
5
Patents 2022

Issued Patents 2022

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
11473713 Trenchless integrative repair method for concrete drainage pipeline with cracking, corrosion and subsidence Fuming Wang, Peng Zhao, Yanhui Pan, Bin Li, Hang He 2022-10-18
11346487 Support tool and back-pressure grouting device for leakage repair of inspection well and repair method thereof Fuming Wang, Peng Zhao, Yanhui Pan, Bin Li, Hang He 2022-05-31
11319690 Assembled recyclable rectangular working well with preset detachable door opening and construction method thereof Fuming Wang, Yanhui Pan, Peng Zhao, Chengchao Guo 2022-05-03
11274784 In-service repair method combining externally bonded pre-stressed FRP and polymer grouting for PCCP with broken wire Fuming Wang, Kejie Zhai, Peng Zhao, Yanhui Pan 2022-03-15
11231139 Detecting and repairing method for external diseases of buried drainage pipeline Fuming Wang, Peng Zhao, Yanhui Pan, Bin Li, Hang He 2022-01-25