Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8828338 | Conversion of gaseous carbon dioxide into aqueous alkaline and/or alkaline earth bicarbonate solutions | Javier Revete, Norma del V. Valencia, Luis Rivas, Nelson Socorro | 2014-09-09 |
| 6485702 | Stable synthetic material and method for preparing same | Jose Carrazza, Norma Valencia de Zapata | 2002-11-26 |
| 6299855 | Stable synthetic material and method for preparing same | Jose Carrazza, Norma Valencia de Zapata | 2001-10-09 |
| 6106802 | Stable synthetic material and method for preparing same | Jose Carrazza, Norma Valencia de Zapata | 2000-08-22 |
| 5952257 | MTW zeolite for cracking feedstock into olefins and isoparaffins | Jorge Tejada, Yilda Romero | 1999-09-14 |
| 5902564 | Material with microporous crystalline walls defining a narrow size distribution of mesopores, and process for preparing same | Yilda Romero, Jose Carrazza | 1999-05-11 |
| 5849258 | Material with microporous crystalline walls defining a narrow size distribution of mesopores, and process for preparing same | Yilda Romero, Jose Carrazza | 1998-12-15 |
| 5840271 | Synthetic material with high void volume associated with mesoporous tortuous channels having a narrow size distribution | Jose Carrazza, Jose Cordova, Jose M. Cruz | 1998-11-24 |
| 5800801 | MTW zeolite for cracking feedstock into olefins and isoparaffins | Jorge Tejada, Yilda Romero | 1998-09-01 |
| 5770040 | MTW zeolite for cracking feedstock into olefins and isoparaffins | Jorge Tejada, Yilda Romero | 1998-06-23 |
| 5628978 | MTW zeolite for cracking feedstock into olefins and isoparaffins | Jorge Tejada, Yilda Romero | 1997-05-13 |
| 5401384 | Antimony and tin containing compound, use of such a compound as a passivating agent, and process for preparing such a compound | Nelson P. Martinez, Nieves Alvarez, Jacek Lubinkowski, William D. McEwen | 1995-03-28 |
| 5360774 | Method for recharging a spend fluid catalytic cracking process catalyst | Nelson P. Martinez, Nieves Alvarez, Francisco Machado, Carmen M. Lopez | 1994-11-01 |
| 5254327 | Zeolitic catalyst of MFI type, its preparation and use | Nelson P. Martinez, Nieves Alvarez, Francisco Machado, Carmen M. Lopez | 1993-10-19 |
| 4894354 | Method of making a conversion catalyst having an anatase vanadium passivating agent for treating a heavy hydrocarbon feedstock | Nelson P. Martinez, Jose R. Velasquez | 1990-01-16 |
| 4857494 | Mild hydrocracking catalyst for the production of middle distillates | Nelson P. Martinez, Roberto Galiasso, Jose R. Velasquez, Carlos Zerpa | 1989-08-15 |
| 4816135 | Cracking heavy hydrocarbon feedstocks with a catalyst comprising an anatase vanadium passivating agent | Nelson P. Martinez, Jose R. Velasquez | 1989-03-28 |
| 4704375 | Vanadium passivating agent for use in a cracking catalyst | Nelson P. Martinez, Jose R. Valasquez | 1987-11-03 |
| 4689314 | Method of preparation of mild hydrocracking catalyst for the production of middle distillates | Nelson P. Martinez, Roberto Galiasso, Jose R. Velasquez, Carlos Zerpa | 1987-08-25 |