John Wallace Macpherson

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Snohomish, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods for reducing the amount of contaminants in water
- Patent number 6,821,427
- Issue date Nov 23, 2004
- Vanson Halosource, Inc.
- John Wallace Macpherson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Methods for reducing the amount of contaminants in water
- Patent number 6,749,748
- Issue date Jun 15, 2004
- Vanson Halosource, Inc.
- John Wallace Macpherson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
System for filtering liquids in a catch basin using filters in seri...
- Patent number 5,223,154
- Issue date Jun 29, 1993
- Emcon Northwest, Inc.
- John W. MacPherson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
METHODS FOR REDUCING THE AMOUNT OF CONTAMINANTS IN WATER
- Publication number 20040195185
- Publication date Oct 7, 2004
- Vanson Halosource, Inc.
- John Wallace Macpherson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE