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Inventor

Zhendong Zhao

Inventor
Nanjing, CN

Overview

4→
Patents
1991–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds33%
A01NPreservation of bodies of humans or animals or plants or parts thereof11%
B60DVehicle connections11%
B61GCouplings11%
C07DHeterocyclic compounds11%
C09FNatural resins11%
G01RMeasuring electric variables11%
PatentTitleYear
10,674,7231,8-bis(Schiff base)-p-menthane derivatives as well as preparation method and applications thereof20208,946,469'Process for preparing isopimaric acid'20158,680,232'Preparation method of pimaric acid type resin acid'20145,050,901'Two-way shock proof and shock absorbing towing coupling'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2015Patents assigned to ZHAO ZHENDONG (3)· patent assignee history
1991Based in Beijing, CN· patent location history
2014–2015Patents assigned to BI LIANGWU (2)· patent assignee history
2014–2015Patents assigned to CHEN YUXIANG (2)· patent assignee history
2014–2015Patents assigned to GU YAN (2)· patent assignee history
2014–2015Patents assigned to INST CHEM IND FOREST PROD CAF (2)· patent assignee history
2014–2020Based in Nanjing, CN· patent location history
2015Based in Jiangsu, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ZHAO ZHENDONGself31991–2015
BI LIANGWU22014–2015
CHEN YUXIANG22014–2015
GU YAN22014–2015
INST CHEM IND FOREST PROD CAF22014–2015
Locations
LocationPatentsSpan
Nanjing, CN22014–2020
Jiangsu, CN12015
Beijing, CN11991