RH

Roberto Barcala Haag

PS Petróleo Brasileiro S.A.—Petrobras: 3 patents #33 of 1,087Top 4%
Overall (All Time): #1,568,927 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7718747 Fiber and process for obtaining same from high-modulus, extrudable polyethylene Dellyo Ricardo dos Santos Alvares 2010-05-18
7435370 Process of making a fiber Dellyo Ricardo dos Santos Alvares 2008-10-14
4983693 Process for preparing a Ziegler type catalytic system and process for preparing ultra high molecular weight polyethylene Jaime da Silva, Juan Raul Quijada Abarca, Odyr Do Coutto Filho 1991-01-08