Inventor
Donghui Li
Inventor
Beijing, CN
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Fprimary
E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels20%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure20%
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
G01VGeophysics20%
G08BSignalling systems, e.g. personal calling systems20%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021Patents assigned to UNIV BEIJING SCIENCE & TECHNOLOGY (1)· patent assignee history
2021Patents assigned to ZHONG AN ACADEMY OF SAFETY ENG (1)· patent assignee history
2021Based in Beijing, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV BEIJING SCIENCE & TECHNOLOGY | 1 | 2021 |
| ZHONG AN ACADEMY OF SAFETY ENG | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Beijing, CN | 1 | 2021 |