Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6384163 | Spherical catalyst, process for preparing a spherical polyethylene of ultra-high molecular weight | Cecilia Maria Ooelho De Figueiredo | 2002-05-07 |
| 5811362 | Process for preparing a Ziegler-type spherical catalyst for alpha-olefin polymerization process | Cecilia Maria Ooelho De Figueiredo | 1998-09-22 |
| 5807950 | Spherical ultra high molecular weight polyethylene | Cecilia Maria Ooelho De Figueiredo | 1998-09-15 |
| 4983693 | Process for preparing a Ziegler type catalytic system and process for preparing ultra high molecular weight polyethylene | Roberto Barcala Haag, Juan Raul Quijada Abarca, Odyr Do Coutto Filho | 1991-01-08 |
| 4568374 | Process for the preparation of fertilizers by the partial solubilization of phosphate rocks | Alberto C. Carneiro da Silva, Fabio G. Martins Costa, Hosam A. Abdallah-Rehim, Elisabeth M. Moreira, Gloria M. G. Soares | 1986-02-04 |