Richard E. Metzgar

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Pensacola, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydrophilic cationic dispersion polymer for paper mill color removal
- Patent number 6,258,279
- Issue date Jul 10, 2001
- Nalco Chemical Company
- Jitendra Shah
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Amphoteric polymer/polyamine combinations for color removal and cla...
- Patent number 5,961,838
- Issue date Oct 5, 1999
- Nalco Chemical Company
- Michael L. Braden
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE