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Inventor

Xuefen Liu

Inventor
Beijing, CN

Overview

4→
Patents
1999–2017
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 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
9,657,236'Process for hydrotreating heavy raw oils'20178,697,598'Hydrogenation catalyst and use thereof'20146,518,219'Catalyst for hydrorefining fraction oils, its carrier and preparation'20035,914,290'Distillate hydrofining catalyst and a process for the preparation of the same'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2014Patents assigned to RES INST PETROLEUM PROCESSING (3)· patent assignee history
1999–2003Patents assigned to CHINA PETROCHEMICAL CORP (2)· patent assignee history
1999–2017Based in Beijing, CN· patent location history
2014Patents assigned to CHINA PETROLEUM & CHEMICAL (1)· patent assignee history
2014Patents assigned to GAO XIAODONG (1)· patent assignee history
2017Patents assigned to CHINA PETROLEUM & CHEM CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RES INST PETROLEUM PROCESSING31999–2014
CHINA PETROCHEMICAL CORP21999–2003
CHINA PETROLEUM & CHEM CORP12017
CHINA PETROLEUM & CHEMICAL12014
GAO XIAODONG12014
Locations
LocationPatentsSpan
Beijing, CN41999–2017