Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612151 | Method for continuous production of elongated carbon bodies | Leif C. Olsen | 1986-09-16 |
| 4527329 | "Process for the manufacture ""in situ"" of carbon electrodes" | Geraldo S. de Santana, David De Oliveira | 1985-07-09 |
| 4328787 | Method and arrangement for melting of pitch etc. | Kjell B. Petersen | 1982-05-11 |