Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9821237 | Character-based electronic device, system, and method of using the same | — | 2017-11-21 |
| 6405799 | Process for in SITU upgrading of heavy hydrocarbon | Carlos Vallejos, Gerson Siachoque, Ignacio Layrisse | 2002-06-18 |
| 5891829 | Process for the downhole upgrading of extra heavy crude oil | Carlos Vallejos, Cesar Ovalles | 1999-04-06 |