Dennis L. Johnson

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Woodridge, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Vortex coagulation means and method for wastewater clarification
- Patent number 4,031,006
- Issue date Jun 21, 1977
- Swift and Company Limited
- Ernest R. Ramirez
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Apparatus and method for removing pollutants from wastewater
- Patent number 3,959,131
- Issue date May 25, 1976
- Swift & Company
- Ernest R. Ramirez
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE