Inventor
Kecheng Wei
Inventor
Beijing, CN
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Mprimary
C10MLubricating compositions50%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions50%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2014Patents assigned to CHINA PETROLEUM & CHEMICAL (1)· patent assignee history
2014Patents assigned to DUAN QINGHUA (1)· patent assignee history
2014Patents assigned to RES INST PETROLEUM PROCESSING (1)· patent assignee history
2014Patents assigned to WEI KECHENG (1)· patent assignee history
2014Patents assigned to XU WEI (1)· patent assignee history
2014Based in Beijing, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHINA PETROLEUM & CHEMICAL | 1 | 2014 |
| DUAN QINGHUA | 1 | 2014 |
| RES INST PETROLEUM PROCESSING | 1 | 2014 |
| WEI KECHENGself | 1 | 2014 |
| XU WEI | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Beijing, CN | 1 | 2014 |