Inventor
YIHENG REN
Inventor
CN
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E02Dprimary
E02DFoundations40%
B61BRailway systems20%
E04CStructural elements20%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges20%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2023–2024Patents assigned to GUANGZHOU METRO DESIGN & RES INST CO LTD (2)· patent assignee history
2023–2024Based in CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GUANGZHOU METRO DESIGN & RES INST CO LTD | 2 | 2023–2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 2 | 2023–2024 |