Inventor

Qingyi Zhang

Inventor

Weifang, CN

Overview

3→

Patents

2019–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 3 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 transducers38%

B29CShaping or joining of plastics13%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts13%

B29LIndexing scheme associated with subclass b29c, relating to particular articles13%

C25DProcesses for the electrolytic or electrophoretic production of coatings13%

H04MTelephonic communication13%

PatentTitleYear

10,667,060Sound generation device and preparation method of metal plastic part2020 10,362,376Speaker and rear cover therefor2019 10,237,662Speaker module with improved heat dissipation2019

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2019–2020Patents assigned to GOERTEK INC (3)· patent assignee history

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

2019Based in Shandong, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GOERTEK INC	3	2019–2020

Locations

Location	Patents	Span
Weifang, CN	2	2019–2020
Shandong, CN	1	2019