Inventor

Liangliang Cao

Inventor

Xiamen, CN

Overview

7→

Patents

2009–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 7 as inventor

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

H01Lprimary

H01LSemiconductor devices18%

H10HInorganic light-emitting semiconductor devices having potential barriers18%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1018%

F21KNon-electric light sources using luminescence11%

F21VFunctional features or details of lighting devices or systems thereof7%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%

C09KMaterials for miscellaneous applications, not provided for elsewhere4%

F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted4%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them4%

H04LTransmission of digital information, e.g. telegraphic communication4%

PatentTitleYear

11,035,528Light emitting device with diffuser and light reflector and projection system having the same2021 11,024,779LED device2021 11,021,653Lighting apparatus2021 11,024,780LED light tube2021 11,018,119LED filament assembly and lamp including the same2021 11,018,282LED device2021 7,609,831'Method for implementing wide area Centrex'2009

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009Patents assigned to HUAWEI TECH CO LTD (1)· patent assignee history

2009Based in Guangdong, CN· patent location history

2021Patents assigned to LEEDARSON LIGHTING CO LTD (4)· patent assignee history

2021Patents assigned to APPOTRONICS CORP LTD (1)· patent assignee history

2021Patents assigned to XIAMEN ECO LIGHTING CO LTD (1)· patent assignee history

2021Based in Xiamen, CN· patent location history

2021Based in Shenzhen, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LEEDARSON LIGHTING CO LTD	4	2021
APPOTRONICS CORP LTD	1	2021
HUAWEI TECH CO LTD	1	2009
XIAMEN ECO LIGHTING CO LTD	1	2021

Locations

Location	Patents	Span
Xiamen, CN	5	2021
Shenzhen, CN	1	2021
Guangdong, CN	1	2009