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Inventor

Guifeng Song

Inventor
Shanghai, CN

Overview

2→
Patents
1999–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

G01Cprimary
G01CMeasuring distances, levels or bearings20%
G01SRadio direction-finding20%
H01JElectric discharge tubes or discharge lamps20%
H04NPictorial communication, e.g. television20%
H04WWireless communication networks20%
PatentTitleYear
10,999,704Method and device for determining space partitioning of environment20215,986,406'Electric field noise eliminating circuit in a video display appliance'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999Patents assigned to LG ELECTRONICS INC (1)· patent assignee history
1999Based in Kyungki-do, KR· patent location history
2021Patents assigned to NOKIA SOLUTIONS & NETWORKS OY (1)· patent assignee history
2021Based in Shanghai, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LG ELECTRONICS INC11999
NOKIA SOLUTIONS & NETWORKS OY12021
Locations
LocationPatentsSpan
Shanghai, CN12021
Kyungki-do, KR11999