Drilling device for surveying front rock-mass intactness of tunnel face for tunnel constructed by TBM and method using the same
US-11585218-B2 · Feb 21, 2023 · US
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Pi Jin patents
Pi Jin is listed as an inventor on 6 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Pi Jin |
| Total patents | 6 |
| First publication | Jan 16, 2020 |
| Latest publication | Feb 21, 2023 |
Notable patents
Publications ranked by popularity score, then publication date.
Tunnel adaptive lining structure in complex environment and construction method thereof
US-11499427-B2 · Nov 15, 2022 · US
Tunnel adaptive lining structure in complex environment and construction method thereof
US-2022120183-A1 · Apr 21, 2022 · US
Drilling device for surveying front rock-mass intactness of tunnel face for tunnel constructed by tbm and method using the same
US-2022082020-A1 · Mar 17, 2022 · US
Advanced monitoring device for whole-process deformation curve of surrounding rock of tunnel excavation and implementation method thereof
US-11236612-B2 · Feb 1, 2022 · US
Advanced monitoring device for whole-process deformation curve of surrounding rock of tunnel excavation and implementation method thereof
US-2020018164-A1 · Jan 16, 2020 · US
Recent patents
Latest publications not already listed above.
No data yet.
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| China Inst Water Resources & Hydropower Res | 6 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21D9/003 | 4 |
| Y02E10/20 | 2 |
| E21D11/05 | 2 |
| E21D11/38 | 2 |
| E21D11/386 | 2 |