Inventor

Pengcheng Ji

Inventor

Weifang, CN

Overview

2019–2021

Patent span

Electricity

Primary field (CPC H)

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 transducers35%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems10%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1010%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications10%

H01FMagnets5%

H01LSemiconductor devices5%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy5%

H02JElectric power networks5%

H03HImpedance networks, e.g. resonant circuits5%

H05KPrinted circuits5%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2019–2020Patents assigned to GOERTEK INC (7)· patent assignee history

2019–2020Based in Weifang, CN· patent location history

2019–2020Based in Shandong, CN· patent location history

2021Patents assigned to DELTA ELECTRONICS SHANGHAI CO (2)· patent assignee history

2021Based in Shanghai, CN· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GOERTEK INC	7	2019–2020
DELTA ELECTRONICS SHANGHAI CO	2	2021

Locations