Barry John Welch

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Orakei, NZ

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Patents Grantslast 30 patents

Information Patent Grant
Measuring and controlling the flow of flowable materials
- Patent number 6,892,586
- Issue date May 17, 2005
- Comalco Aluminum Limited
- Barry John Welch
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Measurement of alumina in reduction pots
- Patent number 6,010,611
- Issue date Jan 4, 2000
- Auckland Uniservices Limited
- Richard Gerard Haverkamp
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR