Inventor

Yanfei Liu

Inventor
Kingston, CA

Overview

15→
Patents
2012–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 15 as inventor

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

H01Fprimary
H01FMagnets10%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments7%
C09DCoating compositions, e.g. paints, varnishes or lacquers7%
C09KMaterials for miscellaneous applications, not provided for elsewhere7%
H01HElectric switches7%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems7%
Y10TTechnical subjects covered by former us classification7%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
G06NComputing arrangements based on specific computational models5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012–2018Patents assigned to LIU YANFEI (5)· patent assignee history
2012–2016Patents assigned to BASF SE (3)· patent assignee history
2012–2016Patents assigned to KOU HUIGUANG (3)· patent assignee history
2012–2016Based in Shanghai, CN· patent location history
2017–2018Based in Kingston, CA· patent location history
2018Patents assigned to GEN ELECTRIC (3)· patent assignee history
2018Patents assigned to SUMIDA ELECTRIC H K COMPANY LTD (3)· patent assignee history
2018Based in Hong Kong, CN· patent location history
2021Based in Sunnyvale, CA, US· patent location history
2021Based in Vernon Hills, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LIU YANFEIself52012–2018
BASF SE32012–2016
GEN ELECTRIC32018
KOU HUIGUANG32012–2016
SUMIDA ELECTRIC H K COMPANY LTD32018
Locations
LocationPatentsSpan
Kingston, CA72017–2018
Shanghai, CN42012–2016
Sunnyvale, California, US12021
Vernon Hills, Illinois, US12021
Hong Kong, CN12018