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DONGWON SYSTEMS CORPORATION
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Anyang-si, KR
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Patents Grants
last 30 patents
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Patent Grant
Laminated film to be applied to eco-friendly packaging material wit...
Patent number
11,794,971
Issue date
Oct 24, 2023
DONGWON SYSTEMS CORPORATION
Ki Ho Park
B32 - LAYERED PRODUCTS
Information
Patent Grant
Lid packing material for food container
Patent number
11,279,538
Issue date
Mar 22, 2022
DONGWON SYSTEMS CORPORATION
Jin Seok Choi
B32 - LAYERED PRODUCTS
Information
Patent Grant
Constant current circuit of high efficiency
Patent number
8,866,538
Issue date
Oct 21, 2014
Electronics and Telecommunications Research Institute
Hyun-Tak Kim
G05 - CONTROLLING REGULATING
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Patents Applications
last 30 patents
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Patent Application
LAMINATED FILM TO BE APPLIED TO ECO-FRIENDLY PACKAGING MATERIAL WIT...
Publication number
20220161980
Publication date
May 26, 2022
DONGWON SYSTEMS CORPORATION
Ki Ho Park
B32 - LAYERED PRODUCTS
Information
Patent Application
ECO-FRIENDLY PACKAGING
Publication number
20210323286
Publication date
Oct 21, 2021
DONGWON SYSTEMS CORPORATION
Sung Ji Choi
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Patent Application
ECO-FRIENDLY CONTAINER LABEL AND METHOD OF MANUFACTURING ECO-FRIEND...
Publication number
20210316538
Publication date
Oct 14, 2021
DONGWON SYSTEMS CORPORATION
Sung Ji Choi
B32 - LAYERED PRODUCTS
Information
Patent Application
LID PACKING MATERIAL FOR FOOD CONTAINER
Publication number
20210237950
Publication date
Aug 5, 2021
DONGWON SYSTEMS CORPORATION
Jin Seok CHOI
B32 - LAYERED PRODUCTS
Information
Patent Application
CONSTANT CURRENT CIRCUIT OF HIGH EFFICIENCY
Publication number
20130278327
Publication date
Oct 24, 2013
DONGWON SYSTEMS CORPORATION
Hyun-Tak Kim
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER