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Yeongtae CHOI
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Yongin-si, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Organic light emitting compounds and organic light emitting devices...
Patent number
11,476,426
Issue date
Oct 18, 2022
SFC CO., LTD.
Se-jin Lee
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Organic light emitting compounds and organic light emitting devices...
Patent number
11,075,343
Issue date
Jul 27, 2021
SFC CO., LTD.
Se-jin Lee
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Organic light emitting compound and organic light emitting diode in...
Patent number
10,957,865
Issue date
Mar 23, 2021
SFC CO., LTD.
Yeongtae Choi
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
AMINE-SUBSTITUTED NAPHTHALENE DERIVATIVES AND ORGANIC LIGHT EMITTIN...
Publication number
20210376241
Publication date
Dec 2, 2021
SFC CO., LTD.
Se-jin LEE
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC LIGHT EMITTING COMPOUND AND ORGANIC LIGHT EMITTING DIODE IN...
Publication number
20210057655
Publication date
Feb 25, 2021
SFC CO., LTD.
Yeongtae CHOI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
AMINE-SUBSTITUTED NAPHTHALENE DERIVATIVES AND ORGANIC LIGHT EMITTIN...
Publication number
20190140177
Publication date
May 9, 2019
SFC CO., LTD.
Se-jin LEE
C07 - ORGANIC CHEMISTRY
Information
Patent Application
ORGANIC LIGHT EMITTING COMPOUND AND ORGANIC LIGHT EMITTING DIODE IN...
Publication number
20180040834
Publication date
Feb 8, 2018
SFC CO., LTD.
Yeongtae CHOI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
ORGANIC LIGHT EMITTING COMPOUNDS AND ORGANIC LIGHT EMITTING DEVICES...
Publication number
20170222160
Publication date
Aug 3, 2017
SFC CO., LTD.
Se-jin LEE
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
ORGANIC LIGHT EMITTING COMPOUNDS AND ORGANIC LIGHT EMITTING DEVICES...
Publication number
20170207397
Publication date
Jul 20, 2017
SFC CO., LTD.
Se-jin LEE
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...