Jung Yul Choi

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Gyeongsangnam-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Ventilation apparatus of a drillship
- Patent number 9,862,474
- Issue date Jan 9, 2018
- Daewoo Shipbuilding & Marine Engineering Co., Ltd.
- Keum Dae Choo
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Polar vessel having a derrick
- Patent number 9,376,199
- Issue date Jun 28, 2016
- Daewoo Shipbuilding & Marine Engineering Co., Ltd.
- Keum Dae Choo
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT

Patents Applicationslast 30 patents

Information Patent Application
VENTILATION APPARATUS OF A DRILLSHIP
- Publication number 20130273823
- Publication date Oct 17, 2013
- Keum Dae Choo
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Application
POLAR VESSEL HAVING A DERRICK
- Publication number 20130269584
- Publication date Oct 17, 2013
- Keum Dae Choo
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT