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Inventor

Zheng Xiang

Inventor
Shenzhen, CN

Overview

3→
Patents
2018–2021
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

E21Bprimary
E21BEarth or rock drilling14%
F04BPositive-displacement machines for liquids14%
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves14%
G01RMeasuring electric variables14%
G06FElectric digital data processing14%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters14%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers14%
PatentTitleYear
11,005,403Motor control system and method based on current feedback signal202110,932,073Method and system for measuring total sound pressure level of noise, and computer readable storage medium20219,903,361'Derrick-type long-stroke hydraulic pumping unit'2018

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2018Patents assigned to SHANGHAI LIANCHUANG IND CO LTD (1)· patent assignee history
2018Based in Haimen, CN· patent location history
2021Patents assigned to AAC TECHNOLOGIES PTE LTD (2)· patent assignee history
2021Based in Shenzhen, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AAC TECHNOLOGIES PTE LTD22021
SHANGHAI LIANCHUANG IND CO LTD12018
Locations
LocationPatentsSpan
Shenzhen, CN22021
Haimen, CN12018