PF

Paulo Sergio Freire

PS Petróleo Brasileiro S.A.—Petrobras: 8 patents #7 of 1,087Top 1%
Overall (All Time): #613,767 of 4,157,543Top 15%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
12025249 Telescopic joint Raphael Coelho Schiavo, Nelson Patricio Junior, Emanuel Freire Sandes, Diana Albani Siqueira 2024-07-02
8568669 Device for cooling and distributing mixed charges on fixed catalyst beds Wilson Kenzo Huziwara, Donizeti Aurelio Silva Belato, Jorge Roberto Duncan Lima, Rogério Michelan, William Victor Carlos Candido +2 more 2013-10-29
7967897 System and process for the separation of suspensions of spent catalysts and hydrocarbons formed in a fluid catalytic cracking unit with multiple ascending flow reaction tubes Wilson Kenzo Huziwara, Emanuel Freire Sandes, Luiz Carlos Casavechia, Jose Geraldo Furtado Ramos, Andrea de Rezende Pinho +3 more 2011-06-28
7867321 Process for disengaging solid and gaseous particles in FCC processes with reduced coke formation in disengager vessels Emanuel Freire Sandes, Jose Geraldo Furtado Ramos, Aurelio Dubois, Jose Mozart Fusco, Eduardo Guerra +1 more 2011-01-11
7638102 Fluid flow inversion chamber for feed spray nozzles in FCC unit risers Claudio Fonseca Machado Dos Santos, Nelson Patricio Junior, Sergio Roberto Barreiros Neves 2009-12-29
7531142 Multifunctional entry device for a downward flow tube reactor Wilson Kenzo Huziwara, Waldir Pedro Martignoni, Mauro Silva, Jose Geraldo Furtado Ramos, Aurelio Dubois 2009-05-12
7332133 Cyclone system for disengaging solid and gaseous particles in FCC systems with reduced coke formation in disengager vessels Emanuel Freire Sandes, Jose Geraldo Furtado Ramos, Aurelio Dubois, Jose Mozart Fusco, Eduardo Guerra +1 more 2008-02-19
7087154 Apparatus and process for downflow fluid catalytic cracking Andrea de Rezende Pinho, Jose Geraldo Furtado Ramos, Wilson Kenzo Huziwara, Claudio dos Santos, Mauro Silva +5 more 2006-08-08