Thomas Johansson

Follow

Person

Ljungaverk, SE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the production of silicon nitride
- Patent number 4,530,825
- Issue date Jul 23, 1985
- Kemanord AB
- Thomas Johansson
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of silicon or ferrosilicon
- Patent number 4,435,209
- Issue date Mar 6, 1984
- Kemanord AB
- Thomas Johansson
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for the preparation of silicon or ferrosilicon
- Patent number 4,269,620
- Issue date May 26, 1981
- Kemanord AB
- Thomas Johansson
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...