Inventor

Yan Liu

Inventor
Beijing, CN

Overview

12→
Patents
2006–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 12 as inventor

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

B09Cprimary
B09CReclamation of contaminated soil11%
C02FTreatment of water, waste water, sewage, or sludge6%
E21BEarth or rock drilling6%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes6%
B09BDisposal of solid waste not otherwise provided for3%
B23KSoldering or unsoldering3%
B25JManipulators3%
B62DMotor vehicles3%
B63CLaunching, hauling-out, or dry-docking of vessels3%
B63GOffensive or defensive arrangements on vessels3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017Patents assigned to BEIJING KEDONG ELECTRIC POWER CONTROL SYSTEM CO LTD (1)· patent assignee history
2017Patents assigned to BEIJING KEDONG POWER CONTROL SYSTEM CO LTD (1)· patent assignee history
2017Patents assigned to CHINA ELECTRIC POWER RES INST (1)· patent assignee history
2017–2020Based in Beijing, CN· patent location history
2018Patents assigned to UNIV NORTHEASTERN (2)· patent assignee history
2018Based in Shenyang, CN· patent location history
2019Based in Hong Kong, CN· patent location history
2020Patents assigned to BCEG ENV REMEDIATION CO LTD (3)· patent assignee history
2020Based in Sunnyvale, CA, US· patent location history
2021Based in Weihai, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BCEG ENV REMEDIATION CO LTD32020
UNIV NORTHEASTERN22018
BEIJING KEDONG ELECTRIC POWER CONTROL SYSTEM CO LTD12017
BEIJING KEDONG POWER CONTROL SYSTEM CO LTD12017
CHINA ELECTRIC POWER RES INST12017
Locations
LocationPatentsSpan
Beijing, CN42017–2020
Shenyang, CN22018
Weihai, CN12021
Sunnyvale, California, US12020
Hong Kong, CN12019