Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8257579 | Method for the well-head treatment of heavy and extra-heavy crudes in order to improve the transport conditions thereof | Rigoberto Barrero, Luz Edelmira Afanador, Gonzalo Leal, Martha Parra, Claudia Esneiden Cuadrado +3 more | 2012-09-04 |
| 5902359 | On-line and/or batch process for production of fuel mixtures consisting of coal/asphaltenes, fuel oil/heavy crude oil, surfactant and water (CCTA), and the obtained products | Oscar J. Medina Suarez, Gonzalo Leal, Rigoberto Barrero, Lilia Rodriguez | 1999-05-11 |
| 5863301 | Method of produce low viscosity stable crude oil emulsion | Martha Parra, Omar Caceres, Edelmira Afanador, Humberto Vidales, Fabio Enrique Hernandez +2 more | 1999-01-26 |
| 4915819 | Treatment of viscous crude oils | Maria L. Chirinos, Ignacio Layrisse, Alan Stockwell | 1990-04-10 |
| 4781819 | Treatment of viscous crude oils | Maria L. Chirinos, Ignacio Layrisse, Alan Stockwell | 1988-11-01 |