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Inventor

Qinfeng Zhao

Inventor
Beijing, CN

Overview

1→
Patents
2017
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%
C10GCracking hydrocarbon oils50%
PatentTitleYear
9,611,435'Method for selective hydrogenation of unsaturated compound'2017

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017Patents assigned to PETROCHINA CO LTD (1)· patent assignee history
2017Based in Beijing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PETROCHINA CO LTD12017
Locations
LocationPatentsSpan
Beijing, CN12017