Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8815765 | Dispersed metal sulfide-based catalysts | Guaicaipuro Rivas, Jose Cordova, Francisco Granadillo, Roger Marzin, Luis Zacarias | 2014-08-26 |
| 8679322 | Hydroconversion process for heavy and extra heavy oils and residuals | Roger Marzin, Luis Zacarias | 2014-03-25 |
| 8551907 | Dispersed metal sulfide-based catalysts | Pedro Pereira, Guaicaipuro Rivas, Jose Cordova, Francisco Granadillo, Roger Marzin +1 more | 2013-10-08 |