Inventor
Lipeng Liu
Inventor
CN
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Dprimary
E21DShafts20%
E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels13%
E21BEarth or rock drilling7%
E21CMining or quarrying7%
G01BMeasuring length, thickness or similar linear dimensions7%
G01CMeasuring distances, levels or bearings7%
G01DMeasuring not specially adapted for a specific variable7%
H01LSemiconductor devices7%
H10BElectronic memory devices7%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h107%
PatentTitleYear
11,631,592Etching process with in-situ formation of protective layer202311,585,218Drilling device for surveying front rock-mass intactness of tunnel face for tunnel constructed by TBM and method using the same202311,499,427Tunnel adaptive lining structure in complex environment and construction method thereof202211,236,612Advanced monitoring device for whole-process deformation curve of surrounding rock of tunnel excavation and implementation method thereof2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2023Patents assigned to CHINA INST WATER RESOURCES & HYDROPOWER RES (3)· patent assignee history
2022–2023Based in CN· patent location history
2023Patents assigned to YANGTZE MEMORY TECH CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHINA INST WATER RESOURCES & HYDROPOWER RES | 3 | 2022–2023 |
| YANGTZE MEMORY TECH CO LTD | 1 | 2023 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 4 | 2022–2023 |