Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4946474 | Process for beneficiation of coal by selective caking | Antonio Vettor, Armando Marcotullio | 1990-08-07 |
| 4881946 | Process for the beneficiation of coal by selective caking | Antonio Vettor, Armando Marcotullio | 1989-11-21 |
| 4776859 | Process for beneficiating coal by means of selective agglomeration | Antonio Vettor | 1988-10-11 |