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Patents Grants
last 30 patents
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Patent Grant
Organic electroluminescent 3,6-disubstituted carbazole compounds an...
Patent number
11,629,142
Issue date
Apr 18, 2023
P&H TECH CO., LTD.
Seo-Yong Hyun
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
ORGANIC COMPOUND, AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
Publication number
20240397813
Publication date
Nov 28, 2024
P&H TECH Co., Ltd
Seo-Yong HYUN
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Organic Light-Emitting Compound And Organic Light-Emitting Device C...
Publication number
20240260453
Publication date
Aug 1, 2024
P&H TECH Co., Ltd
Seo-Yong HYUN
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Organic Compound And Organic Light Emitting Device Including Same
Publication number
20240228470
Publication date
Jul 11, 2024
P&H TECH Co., Ltd.
Seok-Keun YOON
C07 - ORGANIC CHEMISTRY
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Patent Application
Organic Compound And Organic Light-Emitting Device Comprising Same
Publication number
20240124433
Publication date
Apr 18, 2024
P&H TECH Co., Ltd.
Seo-Yong HYUN
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Organic Light Emitting Compound And Organic Light Emitting Device I...
Publication number
20230329101
Publication date
Oct 12, 2023
P&H TECH Co., Ltd
Seo-Yong HYUN
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Organic Light Emitting Compound And Organic Light Emitting Device I...
Publication number
20230150992
Publication date
May 18, 2023
P&H TECH Co., Ltd.
Seo-Yong HYUN
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Organic Light Emitting Diode Employing Multi-Refractive Capping Lay...
Publication number
20220093899
Publication date
Mar 24, 2022
P&H TECH Co., Ltd
Seo-Yong HYUN
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Organic Light Emitting Diode Employing Low-Refractive Capping Layer...
Publication number
20220085336
Publication date
Mar 17, 2022
P&H TECH Co., Ltd
Seo-Yong HYUN
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENT COMPOUND AND ORGANIC ELECTROLUMINESCENT...
Publication number
20200377492
Publication date
Dec 3, 2020
P&H TECH Co., Ltd
Seo-Yong HYUN
C07 - ORGANIC CHEMISTRY
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