Donald Hartle

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North Vancouver, CA

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Patents Grantslast 30 patents

Information Patent Grant
Electrochemical cell for removing contaminants from a wastewater st...
- Patent number 6,663,783
- Issue date Dec 16, 2003
- McKay Creek Technologies, Ltd.
- Robert J. Stephenson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Water and wastewater treatment system and process for contaminant r...
- Patent number 6,495,048
- Issue date Dec 17, 2002
- McKay Creek Technologies, Ltd.
- Robert J. Stephenson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Water and wastewater treatment system and process for contaminant r...
- Patent number 6,346,197
- Issue date Feb 12, 2002
- McKay Creek Technologies Ltd.
- Robert J. Stephenson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Electrochemical cell for removing contaminants from a wastewater st...
- Publication number 20030070993
- Publication date Apr 17, 2003
- Robert J. Stephenson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Water and wastewater treatment system and process for contaminant r...
- Publication number 20020056688
- Publication date May 16, 2002
- Robert J. Stephenson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE