Joseph W. Grenier

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North Providence, RI, US

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Patents Grantslast 30 patents

Information Patent Grant
Lanthanide halide water treatment compositions and methods
- Patent number 6,312,604
- Issue date Nov 6, 2001
- Zodiac Pool Care, Inc.
- Raymond P. Denkewicz
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Silver self-regulating water purification compositions and methods
- Patent number 6,254,894
- Issue date Jul 3, 2001
- Zodiac Pool Care, Inc.
- Raymond P. Denkewicz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Biocidal compositions for treating water
- Patent number 6,217,780
- Issue date Apr 17, 2001
- Zodiac Pool Care, Inc.
- Raymond P. Denkewicz
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Biocidal compositions for treating water
- Patent number 6,093,422
- Issue date Jul 25, 2000
- Zodiac Pool Care, Inc.
- Raymond P. Denkewicz
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of water purification with oxides of chlorine
- Patent number 5,858,246
- Issue date Jan 12, 1999
- Fountainhead Technologies, Inc.
- John D. Rafter
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE