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Roland Schmidt
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Golden, CO, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method for improving metals recovery using high temperature pressur...
Patent number
7,517,384
Issue date
Apr 14, 2009
Phelps Dodge Corporation
John O. Marsden
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for recovery of metals from metal-containing materials using...
Patent number
7,341,700
Issue date
Mar 11, 2008
Phelps Dodge Corporation
John O. Marsden
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for improving metals recovery using high temperature pressur...
Patent number
7,125,436
Issue date
Oct 24, 2006
Phelps Dodge Corporation
John O. Marsden
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for improving metals recovery using high temperature pressur...
Patent number
6,893,482
Issue date
May 17, 2005
Phelps Dodge Corporation
John O. Marsden
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for recovery of metals from metal-containing materials using...
Patent number
6,676,909
Issue date
Jan 13, 2004
Phelphs Dodge Corporation
John O. Marsden
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for improving metals recovery using high temperature pressur...
Patent number
6,626,979
Issue date
Sep 30, 2003
Phelps Dodge Corporation
John O. Marsden
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for improving metals recovery using high temperature leaching
Patent number
6,451,088
Issue date
Sep 17, 2002
Phelps Dodge Corporation
John O. Marsden
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR RECOVERY OF METALS FROM METAL-CONTAINING MATERIALS USING...
Publication number
20080216606
Publication date
Sep 11, 2008
PHELPS DODGE CORPORATION
John O. Marsden
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR IMPROVING METALS RECOVERY USING HIGH TEMPERATURE PRESSUR...
Publication number
20070039420
Publication date
Feb 22, 2007
PHELPS DODGE CORPORATION
John O. MARSDEN
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for Improving Metals Recovery Using High Temperature Pressur...
Publication number
20050155458
Publication date
Jul 21, 2005
PHELPS DODGE CORPORATION
John O. MARSDEN
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for recovery of metals from metal-containing materials using...
Publication number
20040146438
Publication date
Jul 29, 2004
John O. Marsden
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for improving metals recovery using high temperature pressur...
Publication number
20040045406
Publication date
Mar 11, 2004
John O. Marsden
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for improving metals recovery using high temperature pressur...
Publication number
20030019330
Publication date
Jan 30, 2003
John O. Marsden
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for recovery of metals from metal-containing materials using...
Publication number
20020044899
Publication date
Apr 18, 2002
John O. Marsden
C07 - ORGANIC CHEMISTRY