Hee Ryoung Koo

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Yeosu-city, KR

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Patents Grantslast 30 patents

Information Patent Grant
EPDM terpolymer and manufacturing method therefor
- Patent number 11,591,422
- Issue date Feb 28, 2023
- Hyundai Motor Company
- Byeong-Heon Jeong
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
EPDM terpolymer and manufacturing method therefor
- Patent number 11,459,412
- Issue date Oct 4, 2022
- Hyundai Motor Company
- Byeong-Heon Jeong
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Catalyst composition for preparing elastic copolymer, and method fo...
- Patent number 11,220,566
- Issue date Jan 11, 2022
- Kumho Polychem Co., Ltd.
- Hag-Jun Kim
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Methods of preparing EP(D)M elastomer, of controlling yield thereof...
- Patent number 7,119,157
- Issue date Oct 10, 2006
- Kumho Polychem Co., Ltd.
- Sang Bae Kim
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
EPDM Terpolymer and Manufacturing Method Therefor
- Publication number 20220411548
- Publication date Dec 29, 2022
- Hyundai Motor Company
- Byeong-Heon Jeong
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
EPDM Terpolymer and Manufacturing Method Therefor
- Publication number 20210179750
- Publication date Jun 17, 2021
- Hyundai Motor Company
- Byeong-Heon Jeong
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CATALYST COMPOSITION FOR PREPARING ELASTIC COPOLYMER, AND METHOD FO...
- Publication number 20200270382
- Publication date Aug 27, 2020
- KUMHO POLYCHEM CO., LTD.
- Hag-Jun KIM
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Methods of preparing EP(D)M elastomer, of controlling yield thereof...
- Publication number 20060106179
- Publication date May 18, 2006
- Sang Bae Kim
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...