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Inventor

Ri Duan

Inventor
Fushun, CN

Overview

1→
Patents
2015
Patent span
Performing operations
Primary field (CPC B)

Patents· 1 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry50%
C07CAcyclic or carbocyclic compounds50%
PatentTitleYear
9,168,509'Hydrogenation catalysts and the preparation processes thereof'2015

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015Patents assigned to CHINA PETROLEUM & CHEMCIAL CORP (1)· patent assignee history
2015Patents assigned to CHINA PETROLEUM & CHEMICAL (1)· patent assignee history
2015Patents assigned to FUSHUN RES INST OF PETROLEUM (1)· patent assignee history
2015Patents assigned to FUSHUN RES INST PETROLEUM & PETROCHEMICALS SINOPEC (1)· patent assignee history
2015Based in Fushun, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHINA PETROLEUM & CHEMCIAL CORP12015
CHINA PETROLEUM & CHEMICAL12015
FUSHUN RES INST OF PETROLEUM12015
FUSHUN RES INST PETROLEUM & PETROCHEMICALS SINOPEC12015
Locations
LocationPatentsSpan
Fushun, CN12015