Inventor

Kecheng Wei

Inventor
Beijing, CN

Overview

1→
Patents
2014
Patent span
Chemistry
Primary field (CPC C)

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
AssigneePatentsSpan
CHINA PETROLEUM & CHEMICAL12014
DUAN QINGHUA12014
RES INST PETROLEUM PROCESSING12014
WEI KECHENGself12014
XU WEI12014
Locations
LocationPatentsSpan
Beijing, CN12014