Chang Woo Joo

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Daejeon, KR

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Patents Grantslast 30 patents

Information Patent Grant
Method for preparing stabilized hydrocarbon oil blend
- Patent number 9,624,448
- Issue date Apr 18, 2017
- SK Innovation Co., Ltd.
- Chang Woo Joo
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Method for reducing the amount of organic acids in a hydrocarbon oi...
- Patent number 9,127,215
- Issue date Sep 8, 2015
- SK Innovation Co., Ltd.
- Jin Kyu Choi
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

Information Patent Application
Recycling Method of Sludge Recovery Oil
- Publication number 20150353846
- Publication date Dec 10, 2015
- SK INNOVATION CO. LTD.
- Chang Woo Joo
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
METHOD FOR PREPARING STABILIZED HYDROCARBON OIL BLEND
- Publication number 20150090631
- Publication date Apr 2, 2015
- SK INNOVATION CO., LTD.
- Chang Woo Joo
- G01 - MEASURING TESTING
Information Patent Application
Method for Reducing the Amount of Organic Acids in a Hydrocarbon Oi...
- Publication number 20130289328
- Publication date Oct 31, 2013
- SK ENERGY CO., LTD
- Jin Kyu Choi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Blade fixing device for brushcutter
- Publication number 20030084773
- Publication date May 8, 2003
- Chang Kyu Joo
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING