Inventor

Ya-Feng Liu

Inventor
Kowloon, HK

Overview

3→
Patents
2021
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.

B60Hprimary
B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles9%
B61DBody details or kinds of railway vehicles9%
F24FAir-conditioning9%
G02BOptical elements, systems or apparatus9%
G05BControl or regulating systems in general9%
G05DSystems for controlling or regulating non-electric variables9%
H01LSemiconductor devices9%
H04LTransmission of digital information, e.g. telegraphic communication9%
H10HInorganic light-emitting semiconductor devices having potential barriers9%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h109%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021Patents assigned to GREE ELECTRIC APPLIANCES INC ZHUHAI (1)· patent assignee history
2021Patents assigned to HUAWEI TECH CO LTD (1)· patent assignee history
2021Patents assigned to SHENZHEN XIANGYOU TECH CO LTD (1)· patent assignee history
2021Based in Kowloon, HK· patent location history
2021Based in Beijing, CN· patent location history
2021Based in Guangdong, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GREE ELECTRIC APPLIANCES INC ZHUHAI12021
HUAWEI TECH CO LTD12021
SHENZHEN XIANGYOU TECH CO LTD12021
Locations
LocationPatentsSpan
Kowloon, HK12021
Beijing, CN12021
Guangdong, CN12021