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Inventor

Chang Cao

Inventor
Guangdong, CN

Overview

10→
Patents
2005–2020
Patent span
Physics
Primary field (CPC G)

Patents· 10 as inventor

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

G06Fprimary
G06FElectric digital data processing30%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein15%
G09GArrangements or circuits for control of indicating devices using static means to present variable information15%
H01QAntennas, i.e. radio aerials10%
B29CShaping or joining of plastics5%
B29DProducing particular articles from plastics or from substances in a plastic state5%
G01SRadio direction-finding5%
H01PWaveguides5%
H04NPictorial communication, e.g. television5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
10,530,040Sensing screen, control circuit and control method thereof, and sensing screen apparatus202010,324,322Array substrate and touch display device201910,185,448Touch control liquid crystal display device and electronic apparatus201910,185,423Plug-in touch display device and an electronic device201910,048,785Touch display device promoting touch accuracy20189,893,433'Array antenna'20189,799,258'Driving circuit according to RGBW and flat panel display'20179,760,203'Sensing circuit and capacitive touch panel having the sensing circuit'20179,607,539'Display panel capable of reducing a voltage level changing frequency of a select signal and drive circuit thereof'20176,946,047'Method for manufacturing zipper without shift in injection molding'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005Patents assigned to CAO CHANG-WEN (1)· patent assignee history
2005Based in Taipei, TW· patent location history
2017–2019Patents assigned to WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD (6)· patent assignee history
2017–2018Patents assigned to SHENZHEN CHINA STAR OPTOELECT (4)· patent assignee history
2017–2019Based in Guangdong, CN· patent location history
2017Based in Shenzhen, CN· patent location history
2018–2020Patents assigned to HUAWEI TECH CO LTD (2)· patent assignee history
2018–2020Based in Chengdu, CN· patent location history
2019Based in Wuhan, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD62017–2019
SHENZHEN CHINA STAR OPTOELECT42017–2018
HUAWEI TECH CO LTD22018–2020
CAO CHANG-WENself12005
Locations
LocationPatentsSpan
Guangdong, CN42017–2019
Chengdu, CN22018–2020
Wuhan, CN22019
Shenzhen, CN12017
Taipei, TW12005