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Douglas D. Warkentin
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Vancouver, B.C., V5Z 2S9, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Processing of cobaltous sulphate/dithionate liquors derived from co...
Patent number
10,308,523
Issue date
Jun 4, 2019
Rocher Manganese, Inc.
Norman Chow
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Processing of cobaltous sulpha/dithionate liquors derived from coba...
Patent number
10,246,343
Issue date
Apr 2, 2019
Rocher Manganese, Inc.
Norman Chow
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Methods of and systems for treating incinerated waste
Patent number
9,566,587
Issue date
Feb 14, 2017
BLUE SKY MINES LTD.
Douglas Dale Warkentin
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Grant
Processing of manganous sulphate/dithionate liquors derived from ma...
Patent number
8,460,631
Issue date
Jun 11, 2013
American Manganese Inc.
Norman Chow
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for treating solutions containing sulfate and metal ions.
Patent number
5,587,079
Issue date
Dec 24, 1996
Michael V. Rowley
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Patents Applications
last 30 patents
Information
Patent Application
PROCESS FOR THE PURIFICATION OF MANGANESE SULFATE SOLUTIONS AND SUB...
Publication number
20240092654
Publication date
Mar 21, 2024
Manganese X Energy Corp.
Douglas D. WARKENTIN
C01 - INORGANIC CHEMISTRY
Information
Patent Application
PROCESSING OF COBALTOUS SULPHA/DITHIONATE LIQUORS DERIVED FROM COBA...
Publication number
20180155208
Publication date
Jun 7, 2018
ROCHER MANGANESE, INC.
Norman Chow
C01 - INORGANIC CHEMISTRY
Information
Patent Application
METHODS OF AND SYSTEMS FOR TREATING INCINERATED WASTE
Publication number
20170106378
Publication date
Apr 20, 2017
BLUE SKY MINES LTD.
Douglas Dale Warkentin
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
METHODS OF AND SYSTEMS FOR TREATING INCINERATED WASTE
Publication number
20150258552
Publication date
Sep 17, 2015
Douglas Dale Warkentin
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
SULFIDE GENERATION VIA BIOLOGICAL REDUCTION OF DIVALENT,TETRAVALENT...
Publication number
20130164810
Publication date
Jun 27, 2013
KEMETCO RESEARCH INC.
Douglas Warkentin
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Application
PROCESSING OF MANGANOUS SULPHATE/DITHIONATE LIQUORS DERIVED FROM MA...
Publication number
20120207666
Publication date
Aug 16, 2012
American Manganese, Inc.
Norman Chow
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...