Michael H. Blenk

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Youngstown, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Iron as a co-additive in refining crude lead bullion
- Patent number 5,223,021
- Issue date Jun 29, 1993
- E. I. Du Pont de Nemours and Company
- Michael H. Blenk
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Iron and a copper speiss as co-additives in refining crude lead bul...
- Patent number 5,183,497
- Issue date Feb 2, 1993
- E. I. Du Pont de Nemours and Company
- Michael H. Blenk
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Copper speiss as a co-additive in refining crude lead bullion
- Patent number 5,183,496
- Issue date Feb 2, 1993
- E. I. Du Pont de Nemours and Company
- Michael H. Blenk
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for purifying lead using calcium/sodium filter cake
- Patent number 5,100,466
- Issue date Mar 31, 1992
- E. I. Du Pont de Nemours and Company
- Michael H. Blenk
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...