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Inventor

Weisun Feng

Inventor
Beijing, CN

Overview

1→
Patents
1997
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.

C07Dprimary
C07DHeterocyclic compounds100%
PatentTitleYear
5,637,735'Process for the preparation of gamma-butyrolactone'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997Patents assigned to CHINA PETROCHEMICAL CORP (1)· patent assignee history
1997Patents assigned to RES INST PETROLEUM PROCESSING (1)· patent assignee history
1997Based in Beijing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHINA PETROCHEMICAL CORP11997
RES INST PETROLEUM PROCESSING11997
Locations
LocationPatentsSpan
Beijing, CN11997