DSO "Cherna Metalurgia"

Organization

Sofia, BG

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for coating graphite electrodes
- Patent number 4,259,919
- Issue date Apr 7, 1981
- DSO "Cherna Metalurgia"
- Todor Y. Koychev
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Apparatus for applying protective coatings to graphite bodies
- Patent number 4,226,207
- Issue date Oct 7, 1980
- DSO "Cherna Metalurgia"
- Ivan V. Genev
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for the refining of iron-based melts
- Patent number 4,200,452
- Issue date Apr 29, 1980
- DSO "Cherna Metalurgia"
- Peter H. Savov
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Disc-type apparatus for crushing hard materials
- Patent number 4,199,113
- Issue date Apr 22, 1980
- DSO "Cherna Metalurgia"
- Ivan V. Genev
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Method of steelmaking with direct current
- Patent number 4,110,547
- Issue date Aug 29, 1978
- DSO "Cherna Metalurgia"
- Vassil G. Peev
- C21 - METALLURGY OF IRON
Information Patent Grant
Contact clamp for graphite electrodes
- Patent number 4,101,186
- Issue date Jul 18, 1978
- DSO "Cherna Metalurgia"
- Georgi Metev Georgiev
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Apparatus for the application of a protective coating to a graphite...
- Patent number 4,077,357
- Issue date Mar 7, 1978
- DSO "Cherna Metalurgia"
- Vassil Georgiev Peev
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Apparatus for preheating a raw material charge for application to a...
- Patent number 4,013,401
- Issue date Mar 22, 1977
- DSO "Cherna Metalurgia"
- Assen Yordanov Georgiev
- F27 - FURNACES KILNS OVENS RETORTS

DSO "Cherna Metalurgia"

Organization

Patents Grantslast 30 patents

Apparatus for coating graphite electrodes

Apparatus for applying protective coatings to graphite bodies

Method for the refining of iron-based melts

Disc-type apparatus for crushing hard materials

Method of steelmaking with direct current

Contact clamp for graphite electrodes

Apparatus for the application of a protective coating to a graphite...

Apparatus for preheating a raw material charge for application to a...