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Inventor profile of:

Hee-Choon Ahn

City:

Gyeonggi-do

Country:

South Korea

Published Applications:

Last publication date:

2025-11-13

Top Assignees for applications by Hee-Choon Ahn

The entities that hold a legal rights for patent applications filed by inventor Ahn Hee-Choon:

DuPont Specialty Materials Korea Ltd. 3 , South Korea
Rohm and Haas Electronic Materials Korea Ltd. 2 , South Korea
ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD. 1 Chungcheongnam-do, South Korea
Rohm and Haas Electronic Materials Korea Ltd. 1 Cheonan-Si, South Korea

Recent patent applications by Ahn Hee-Choon

Hee-Choon Ahn from Gyeonggi-do, KR has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2025-11-13

US20250351723A1

Electricity

MULTI-COMPONENT HOST MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

#2 | 2025-11-13

US20250346806A1

Chemistry; metallurgy

ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

#3 | 2024-06-20

US20240206333A1

Electricity

MULTI-COMPONENT HOST MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

#4 | 2024-05-02

US20240147845A1

Electricity

ORGANIC ELECTROLUMINESCENT DEVICE

#5 | 2024-03-14

US20240090328A1

Electricity

MULTI-COMPONENT HOST MATERIAL AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME

#6 | 2024-02-29

US20240067874A1

Chemistry; metallurgy

ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

#7 | 2023-06-08

US20230180604A1

Electricity

Organic electroluminescent device comprising an electron buffer layer and an electron transport layer

#8 | 2023-01-19

US20230020540A1

Electricity

MULTI-COMPONENT HOST MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

#9 | 2022-07-07

US20220216430A1

Electricity

MULTI-COMPONENT HOST MATERIAL AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME

#10 | 2022-07-07

US20220216429A1

Electricity

MULTI-COMPONENT HOST MATERIAL AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME

#11 | 2022-06-16

US20220186114A1

Chemistry; metallurgy

Organic electroluminescent compounds and organic electroluminescent device comprising the same

#12 | 2022-03-31

US20220102644A1

Electricity

ORGANIC ELECTROLUMINESCENT DEVICE

#13 | 2022-03-31

US20220102633A1

Electricity

Organic electroluminescent device

#14 | 2022-03-10

US20220077405A1

Electricity

MULTI-COMPONENT HOST MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

#15 | 2021-07-08

US20210210697A1

Electricity

MULTI-COMPONENT HOST MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

#16 | 2019-07-04

US20190207125A1

Electricity

ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING AN ELECTRON BUFFER LAYER AND AN ELECTRON TRANSPORT LAYER

#17 | 2018-11-08

US20180323397A1

Electricity

Electron buffering materials, electron transport materials and organic electroluminescent device comprising the same

#18 | 2015-12-10

US20150357583A1

Electricity

Organic electroluminescent compounds, layers and organic electroluminescent device using the same

#19 | 2015-06-18

US20150171346A1

Electricity

Novel Organic Electroluminescent Compounds and Organic Electroluminescent Device Using The Same

#20 | 2015-04-16

US20150105563A1

Electricity

NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

#21 | 2014-12-11

US20140364625A1

Electricity

NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME

#22 | 2014-10-30

US20140323723A1

Electricity

NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND AN ORGANIC ELECTROLUMINESCENT DEVICE USINC THE SAME

InventorID:

954731 ⎘