Stephen B. Warrick

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Ancaster, CA

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Patents Grantslast 30 patents

Information Patent Grant
Liquid suspension of polyethylene oxide for use in treating paper a...
- Patent number 5,342,538
- Issue date Aug 30, 1994
- Nalco Canada, Inc.
- Daniel K. Chung
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Liquid suspension of polyethylene oxide for use in treating paper a...
- Patent number 5,230,808
- Issue date Jul 27, 1993
- Nalco Canada Inc.
- Daniel K. Chung
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Liquid suspension of polyethylene oxide for use in treating paper a...
- Patent number 5,173,208
- Issue date Dec 22, 1992
- Nalco Canada Inc.
- Daniel K. Chung
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE