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Inventor

Mao Liu

Inventor
Shenzhen, CN

Overview

3→
Patents
2007–2019
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.

B24Bprimary
B24BMachines, devices, or processes for grinding or polishing17%
G01CMeasuring distances, levels or bearings17%
H01QAntennas, i.e. radio aerials17%
H02JElectric power networks17%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution17%
Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids17%
PatentTitleYear
10,522,922Antenna system20199,151,623'Method and apparatus for controlling an electrical device and a wireless charging device'20157,300,334'Drilling-head-grinding positioning device'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007Patents assigned to LIU MAO-SUNG (1)· patent assignee history
2007Based in Taipei, TW· patent location history
2015Patents assigned to O2MICRO INC (1)· patent assignee history
2015Based in Shanghai, CN· patent location history
2019Patents assigned to AAC TECHNOLOGIES PTE LTD (1)· patent assignee history
2019Based in Shenzhen, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AAC TECHNOLOGIES PTE LTD12019
LIU MAO-SUNGself12007
O2MICRO INC12015
Locations
LocationPatentsSpan
Shenzhen, CN12019
Shanghai, CN12015
Taipei, TW12007