Samir Chefai

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Milton, CA

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Patents Grantslast 30 patents

Information Patent Grant
Co-current and counter current resin-in-leach in gold leaching proc...
- Patent number 10,415,116
- Issue date Sep 17, 2019
- Barrick Gold Corporation
- Yeonuk Choi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Co-current and counter current resin-in-leach in gold leaching proc...
- Patent number 9,790,572
- Issue date Oct 17, 2017
- Barrick Gold Corporation
- Yeonuk Choi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Co-current and counter current resin-in-leach in gold leaching proc...
- Patent number 8,715,389
- Issue date May 6, 2014
- Barrick Gold Corporation
- Yeonuk Choi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Co-Current and Counter Current Resin-In-Leach in Gold Leaching Proc...
- Publication number 20180030571
- Publication date Feb 1, 2018
- BARRICK GOLD CORPORATION
- Yeonuk Choi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Co-Current and Counter Current Resin-In-Leach in Gold Leaching Proc...
- Publication number 20140035207
- Publication date Feb 6, 2014
- BARRICK GOLD CORPORATION
- Yeonuk Choi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
CO-CURRENT AND COUNTER CURRENT RESIN-IN-LEACH IN GOLD LEACHING PROC...
- Publication number 20120183433
- Publication date Jul 19, 2012
- BARRICK GOLD CORPORATION
- Yeonuk Choi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...