| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 2 | |
| #2 | United Kingdom | 2 | |
| #3 | India | 2 | |
| #4 | Brazil | 1 | |
| #5 | Egypt | 1 | |
| #6 | Sweden | 1 | |
| #7 | United States | 1 | |
| #8 | South Africa | 1 |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ninov E | 4 |
| #2 | Valchev A | 4 |
| #3 | Visokomogilski G | 2 |
| #4 | Velev V | 2 |
| #5 | Ninov Emil P | 2 |
| #6 | Valchev Alexander Y | 2 |
| #7 | Peev V | 2 |
| #8 | Krestenjakov J I | 1 |
| #9 | Peev Vasil G | 1 |
| #10 | Velev V T | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA990080A | Method for producing steel in an electric furnace by direct current | |
| US3835230A | D.c. arc furnace for steelmaking | |
| EG11456A | A method for producing of protective coatings on carbon electrodes | |
| ZA7301234B | A method for producing of protective coatings on carbon electrodes | |
| CA988590A | Method for forming a protective coating on carbon electrodes | |
| GB1419302A | Coating carbon articles |