Inventor
Jingxi DUAN
Inventor
CN
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling29%
E21CMining or quarrying29%
E21DShafts29%
E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels14%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2026Patents assigned to CCTEG TAIYUAN RES INSTITUTE (2)· patent assignee history
2026Patents assigned to SHANXI TIANDI COAL MINING MACHINERY CO LTD (2)· patent assignee history
2026Based in CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CCTEG TAIYUAN RES INSTITUTE | 2 | 2026 |
| SHANXI TIANDI COAL MINING MACHINERY CO LTD | 2 | 2026 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 2 | 2026 |