Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806231 | Method for desalting crude oil | David E. Graham, Ignacio Layrisse, Alan Stockwell | 1989-02-21 |
| 4801304 | Process for the production and burning of a natural-emulsified liquid fuel | Domingo R. Polanco, Ignacio Layrisse, Hercilio Rivas, G. Euler Jimenez, Lirio Q. de Paz +3 more | 1989-01-31 |
| 4795478 | Viscous hydrocarbon-in-water emulsions | Ignacio A. Layrisse R., Domingo R. Polanco, Hercilio Rivas, Euler Jimenez G., Lirio Quintero +5 more | 1989-01-03 |