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Inventor

Qingshun Zhang

Inventor
Beijing, CN

Overview

2→
Patents
2015–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds20%
C07DHeterocyclic compounds20%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium20%
G01SRadio direction-finding20%
G02BOptical elements, systems or apparatus20%
PatentTitleYear
10,969,473Infrared range-measurement device and TIR lens20219,187,419'Intermediates of sitagliptin and preparation process thereof'2015

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015Patents assigned to DENG FEI (1)· patent assignee history
2015Patents assigned to HE MINHUAN (1)· patent assignee history
2015Patents assigned to HUANG MINGWANG (1)· patent assignee history
2015Patents assigned to LI WEIJIN (1)· patent assignee history
2015Based in Taizhou, CN· patent location history
2021Patents assigned to BENEWAKE BEIJING CO LTD (1)· patent assignee history
2021Based in Beijing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BENEWAKE BEIJING CO LTD12021
DENG FEI12015
HE MINHUAN12015
HUANG MINGWANG12015
LI WEIJIN12015
Locations
LocationPatentsSpan
Beijing, CN12021
Taizhou, CN12015