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SungHoon JOO
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Cheongju-si, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Polycyclic aromatic compounds and organic electroluminescent device...
Patent number
11,985,891
Issue date
May 14, 2024
SFC CO., LTD.
SungHoon Joo
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Indolocarbazole derivatives and organic electroluminescent devices...
Patent number
11,456,428
Issue date
Sep 27, 2022
SFC CO., LTD.
SungHoon Joo
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Polycyclic aromatic compounds and organic electroluminescent device...
Patent number
10,981,938
Issue date
Apr 20, 2021
SFC CO., LTD.
SungHoon Joo
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
POLYCYCLIC AROMATIC COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE...
Publication number
20210167293
Publication date
Jun 3, 2021
SFC CO., LTD.
SungHoon JOO
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
POLYCYCLIC AROMATIC COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE...
Publication number
20200172558
Publication date
Jun 4, 2020
SFC CO., LTD.
SungHoon JOO
C07 - ORGANIC CHEMISTRY
Information
Patent Application
INDOLOCARBAZOLE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT DEVICES...
Publication number
20200161552
Publication date
May 21, 2020
SFC CO., LTD.
SungHoon JOO
H01 - BASIC ELECTRIC ELEMENTS