Dennis J. Michalak

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Warrenville, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for purifying a crude dimethyl naphthalene dicarboxylate
- Patent number 4,886,901
- Issue date Dec 12, 1989
- Amoco Corporation
- Juergen K. Holzhauer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the oxidation of di- or trimethylbenzenes in the presen...
- Patent number 4,876,386
- Issue date Oct 24, 1989
- Amoco Corporation
- Juergen K. Holzhauer
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for recovery of cobalt and manganese for oxidation residue...
- Patent number 4,786,621
- Issue date Nov 22, 1988
- Amoco Corporation
- Juergen K. Holzhauer
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...