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Inventor

James (Zhan) Chen

Inventor
Shanghai, CN

Overview

3→
Patents
2019–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

B29Lprimary
B29LIndexing scheme associated with subclass b29c, relating to particular articles17%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds17%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds17%
C08JWorking-up17%
Y02PClimate change mitigation technologies in the production or processing of goods17%
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves8%
H01BCables8%
PatentTitleYear
11,035,720Warning device for preventing underground cables against accidental excavation202110,683,403Polyurethane composite material and process of preparing same202010,344,130Polyurethane composite material and process of preparing same2019

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2019–2020Patents assigned to COVESTRO DEUTSCHLAND AG (2)· patent assignee history
2019–2021Based in Shanghai, CN· patent location history
2021Patents assigned to STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
COVESTRO DEUTSCHLAND AG22019–2020
STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO12021
Locations
LocationPatentsSpan
Shanghai, CN32019–2021