CF

Cecilia Maria Ooelho De Figueiredo

PS Petróleo Brasileiro S.A.—Petrobras: 3 patents #33 of 1,087Top 4%
Overall (All Time): #1,615,925 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6384163 Spherical catalyst, process for preparing a spherical polyethylene of ultra-high molecular weight Jaime da Silva 2002-05-07
5811362 Process for preparing a Ziegler-type spherical catalyst for alpha-olefin polymerization process Jaime da Silva 1998-09-22
5807950 Spherical ultra high molecular weight polyethylene Jaime da Silva 1998-09-15