Kenneth N. Han

Person

Rapid City, SD, US

People

Patents Grantslast 30 patents

Information Patent Grant
Recovery of precious metals
- Patent number 7,166,145
- Issue date Jan 23, 2007
- South Dakota School of Mines and Technology
- Kenneth N. Han
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Recovery of platinum group metals
- Patent number 7,067,090
- Issue date Jun 27, 2006
- South Dakota School of Mines and Technology
- Kenneth N. Han
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Recovery of copper from its sulfides and other sources using haloge...
- Patent number 5,989,311
- Issue date Nov 23, 1999
- South Dakota School of Mines and Technology
- Kenneth N. Han
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Recovery of platinum group metals and rhenium from materials using...
- Patent number 5,542,957
- Issue date Aug 6, 1996
- South Dakota School of Mines and Technology
- Kenneth N. Han
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Extraction of precious metals from ores and other precious metal co...
- Patent number 5,328,669
- Issue date Jul 12, 1994
- South Dakota School of Mines and Technology
- Kenneth N. Han
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Ammonia extraction of gold and silver from ores and other materials
- Patent number 5,308,381
- Issue date May 3, 1994
- South Dakota School of Mines & Techology
- Kenneth N. Han
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Ammonia extraction of gold and silver from ores and other materials
- Patent number 5,114,687
- Issue date May 19, 1992
- South Dakota School of Mines and Technology
- Kenneth N. Han
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Recovery of platinum group metals
- Publication number 20040081602
- Publication date Apr 29, 2004
- Kenneth N. Han
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Kenneth N. Han

Person

Patents Grantslast 30 patents

Recovery of precious metals

Recovery of platinum group metals

Recovery of copper from its sulfides and other sources using haloge...

Recovery of platinum group metals and rhenium from materials using...

Extraction of precious metals from ores and other precious metal co...

Ammonia extraction of gold and silver from ores and other materials

Ammonia extraction of gold and silver from ores and other materials

Patents Applicationslast 30 patents

Recovery of platinum group metals