Josef Bertha

Follow

Person

Brixlegg, AT

People

Patents Grantslast 30 patents

Information Patent Grant
Hydrometallurgical process for the recovery of silver from copper e...
- Patent number 4,874,429
- Issue date Oct 17, 1989
- Austria Metall Aktiengesellschaft
- Josef Bertha
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Hydrometallurgical process for the separation and enrichment of gol...
- Patent number 4,770,700
- Issue date Sep 13, 1988
- Austria Metal Aktiengesellschaft
- Josef Bertha
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Hydrometallurgical process for recovering silver from copper-electr...
- Patent number 4,666,514
- Issue date May 19, 1987
- Austria Metall Aktiengesellschaft
- Josef Bertha
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...