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Inventor

Qifeng Dai

Inventor
Shenzhen, CN

Overview

3→
Patents
2017–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

G09Gprimary
G09GArrangements or circuits for control of indicating devices using static means to present variable information25%
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 systems25%
H04NPictorial communication, e.g. television25%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications17%
H05BElectric heating8%
PatentTitleYear
10,694,138OLED drive power device and OLED television202010,354,570High-power power supply for use with display devices and associated display device20199,603,219'Driving power supply apparatus for OLED'2017

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017Patents assigned to SHENZHEN SKYWORTH-RGB ELECTRONIC CO LTD (1)· patent assignee history
2017–2020Based in Shenzhen, CN· patent location history
2019Patents assigned to SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD (1)· patent assignee history
2020Patents assigned to SHENZHEN CHUANGWEI RGB ELECTRONIC CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHENZHEN CHUANGWEI RGB ELECTRONIC CO LTD12020
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD12019
SHENZHEN SKYWORTH-RGB ELECTRONIC CO LTD12017
Locations
LocationPatentsSpan
Shenzhen, CN32017–2020