Inventor
Hejing LIU
Inventor
CN
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E02Fprimary
E02FDredging22%
E21CMining or quarrying22%
B63BShips or other waterborne vessels11%
B63CLaunching, hauling-out, or dry-docking of vessels11%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors11%
B67DDispensing, delivering or transferring liquids, not otherwise provided for11%
F17CVessels for containing or storing compressed, liquefied or solidified gases11%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2025Patents assigned to CHINA MERCHANTS DEEPSEA RES INSTITUTE SANYA CO (2)· patent assignee history
2025Patents assigned to CHINA MERCHANTS DEEPSEA RES INSTITUTE SANYA CO LTD (2)· patent assignee history
2025Patents assigned to CHINA MERCHANTS MARINE AND OFFSHORE RES INSTITUTE CO LTD (2)· patent assignee history
2025Patents assigned to CHINA MERCHANTS MARINE OFFSHORE RES INSTITUTE CO (2)· patent assignee history
2025Patents assigned to CHINA MERCHANTS DEEPSEA RES INST SANYA CO (1)· patent assignee history
2025Based in CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHINA MERCHANTS DEEPSEA RES INSTITUTE SANYA CO | 2 | 2025 |
| CHINA MERCHANTS DEEPSEA RES INSTITUTE SANYA CO LTD | 2 | 2025 |
| CHINA MERCHANTS MARINE AND OFFSHORE RES INSTITUTE CO LTD | 2 | 2025 |
| CHINA MERCHANTS MARINE OFFSHORE RES INSTITUTE CO | 2 | 2025 |
| CHINA MERCHANTS DEEPSEA RES INST SANYA CO | 1 | 2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 3 | 2025 |