W. Roger McPherson

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Otsego, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Liquid filtration system and replaceable filter cartridge usable th...
- Patent number 6,051,144
- Issue date Apr 18, 2000
- Clack Corporation
- Robert A. Clack
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method and apparatus for monitoring liquid flow through an enclosed...
- Patent number 5,876,610
- Issue date Mar 2, 1999
- Clack Corporation
- Robert A. Clack
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE