John P. Ziemianski

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Avonmore, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Low nickel, copper containing chromium-nickel-manganese-copper-nitr...
- Patent number 5,286,310
- Issue date Feb 15, 1994
- Allegheny Ludlum Corporation
- Gary M. Carinci
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for hot-dip coating chromium-bearing steel
- Patent number 5,175,026
- Issue date Dec 29, 1992
- Wheeling-Nisshin, Inc.
- William A. Bertol
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Austenitic stainless steel for low temperature service
- Patent number 4,568,387
- Issue date Feb 4, 1986
- Allegheny Ludlum Steel Corporation
- John P. Ziemianski
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for producing a weldable austenitic stainless steel in heavy...
- Patent number 4,545,826
- Issue date Oct 8, 1985
- Allegheny Ludlum Steel Corporation
- Thomas H. McCunn
- C21 - METALLURGY OF IRON