Inventor
YANHUI PAN
Inventor
CN
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Lprimary
F16LPipes26%
E02DFoundations16%
E03FSewers10%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%
E02BHydraulic engineering6%
E21BEarth or rock drilling6%
B25JManipulators3%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%
C09KMaterials for miscellaneous applications, not provided for elsewhere3%
E06CLadders3%
PatentTitleYear
12,441,921Silicate-modified polymer grouting material for leakage plugging202511,708,933Pipeline radar and television inspection robot202311,618,802Polymer expanding material used in infiltration or seepage watery environment and preparation method thereof202311,585,467Trenchless methods for forming curved hole channel with steel sleeve and pipeline lifting202311,499,284Trough plate for constructing locked polymer anti-seepage wall and construction method of locked polymer anti-seepage wall202211,473,713Trenchless integrative repair method for concrete drainage pipeline with cracking, corrosion and subsidence202211,346,487Support tool and back-pressure grouting device for leakage repair of inspection well and repair method thereof202211,319,690Assembled recyclable rectangular working well with preset detachable door opening and construction method thereof202211,274,784In-service repair method combining externally bonded pre-stressed FRP and polymer grouting for PCCP with broken wire202211,231,139Detecting and repairing method for external diseases of buried drainage pipeline202211,149,400Thin-slotting lifting synchronous grouting device and its usage method202111,149,399Track-type jet grouting integrated system202111,143,027Rectangular working well with preset pipe jacking hole and sliding back wall in water-rich stratum and construction method thereof2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2023Patents assigned to WELEAD INFRASTRUCTURE ENGINEERING TECH ZHENGZHOU LTD (10)· patent assignee history
2021–2023Patents assigned to INFRASTRUCTURE RENEWAL INST OF SOUTHERN CHINA (8)· patent assignee history
2021–2025Based in CN· patent location history
2022–2025Patents assigned to SAFEKEY ENGINEERING TECH ZHENGZHOU LTD (3)· patent assignee history
2022–2023Patents assigned to UNIV ZHENGZHOU (3)· patent assignee history
2022Patents assigned to HENAN INSTITUTE OF SUN YAT SEN UNIV (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WELEAD INFRASTRUCTURE ENGINEERING TECH ZHENGZHOU LTD | 10 | 2021–2023 |
| INFRASTRUCTURE RENEWAL INST OF SOUTHERN CHINA | 8 | 2021–2023 |
| SAFEKEY ENGINEERING TECH ZHENGZHOU LTD | 3 | 2022–2025 |
| UNIV ZHENGZHOU | 3 | 2022–2023 |
| HENAN INSTITUTE OF SUN YAT SEN UNIV | 1 | 2022 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 13 | 2021–2025 |