Zia Patent Company

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Dallas, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Direct reduction process in a rotary hearth furnace
- Patent number 5,186,741
- Issue date Feb 16, 1993
- Zia Patent Company
- Norman L. Kotraba
- C21 - METALLURGY OF IRON
Information Patent Grant
Heat treating furnace
- Patent number 5,164,147
- Issue date Nov 17, 1992
- Zia Patent Company
- N. Edward Bottinelli
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Continuous feed shaft retort appartus for recovery of non-ferrous m...
- Patent number 5,028,034
- Issue date Jul 2, 1991
- Zia Patent Company
- Norman G. Bishop
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

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