Choong O. Ryu

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Gimhae-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing a composite drive shaft manufactured using...
- Patent number 8,459,978
- Issue date Jun 11, 2013
- Choong O Ryu
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
CONNECTION JOINT AND COMPOSITE DRIVE SHAFT ASSEMBLY HAVING THEM
- Publication number 20100144453
- Publication date Jun 10, 2010
- Choong O Ryu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
MOLD FOR MANUFACTURING COMPOSITE DRIVE SHAFT AND COMPOSITE DRIVE SH...
- Publication number 20100113169
- Publication date May 6, 2010
- Choong O. Ryu
- B28 - WORKING CEMENT, CLAY, OR STONE