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Inventor

Guanglei Liu

Inventor
Shandong, CN

Overview

4→
Patents
2011–2019
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers75%
H04BTransmission25%
PatentTitleYear
10,341,780Miniature speaker20199,838,796'Electroacoustic transducer'20179,307,306'Micro loudspeaker and electronic device using same'20167,903,970'Optical network evaluation systems and methods'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011Patents assigned to GEORGIA TECH RES INST (1)· patent assignee history
2011Based in Atlanta, GA, US· patent location history
2016–2019Patents assigned to GOERTEK INC (3)· patent assignee history
2016Based in Weifang, CN· patent location history
2017–2019Based in Shandong, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GOERTEK INC32016–2019
GEORGIA TECH RES INST12011
Locations
LocationPatentsSpan
Shandong, CN22017–2019
Weifang, CN12016
Atlanta, Georgia, US12011