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Inventor

Lei Zhang

Inventor
Shenzhen, CN

Overview

4→
Patents
2013–2021
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 transducers19%
G02CSpectacles13%
G06FElectric digital data processing13%
G10LSpeech analysis techniques or speech synthesis13%
H04MTelephonic communication13%
H04SStereophonic systems13%
H04WWireless communication networks13%
LOC186%
PatentTitleYear
11,122,359Acoustic output apparatus and method thereof202111,115,751Apparatus and methods for bone conduction speaker202111,115,774Acoustic output apparatus2021D0678396'Shredder'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013Patents assigned to DING ZIQIANG (1)· patent assignee history
2013Patents assigned to GUO PING (1)· patent assignee history
2013Patents assigned to JIANGSU NEW UNITED OFFICE EQUIPMENTS CO LTD (1)· patent assignee history
2013Patents assigned to QI JIANBO (1)· patent assignee history
2013Based in Changzhou, CN· patent location history
2021Patents assigned to SHENZHEN VOXTECH CO LTD (3)· patent assignee history
2021Based in Shenzhen, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHENZHEN VOXTECH CO LTD32021
DING ZIQIANG12013
GUO PING12013
JIANGSU NEW UNITED OFFICE EQUIPMENTS CO LTD12013
QI JIANBO12013
Locations
LocationPatentsSpan
Shenzhen, CN32021
Changzhou, CN12013