Inventor

Bixiang Yan

Inventor
Guangdong, CN

Overview

8→
Patents
2017–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 8 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 transducers44%
H04MTelephonic communication22%
G10KSound-producing devices17%
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general6%
G08BSignalling systems, e.g. personal calling systems6%
H03GControl of amplification6%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017Patents assigned to GUANG DONG OPPO MOBILE TELECOMM CORP LTD (1)· patent assignee history
2017Patents assigned to KINGTONE INNOVATION (BEIJING) TECH CO LTD (1)· patent assignee history
2017–2019Based in Dongguan, CN· patent location history
2019–2020Patents assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (7)· patent assignee history
2019–2020Based in Guangdong, CN· patent location history
2020Patents assigned to KING TONE INNOVATION BEIJING TECH CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD72019–2020
GUANG DONG OPPO MOBILE TELECOMM CORP LTD12017
KING TONE INNOVATION BEIJING TECH CO LTD12020
KINGTONE INNOVATION (BEIJING) TECH CO LTD12017
Locations
LocationPatentsSpan
Guangdong, CN62019–2020
Dongguan, CN22017–2019