Inventor · disambiguated record
Paulo Sergio Freire
Also filed as: FREIRE PAULO R G · FREIRE PAULO S · FREIRE PAULO SERGIO
8 granted patents·4 pending applications·63 citations·filing 2002–2025
80Inventor score
Files withPETROLEO BRASILEIRO SA7HUZIWARA WILSON KENZO1JOHNSON CONTROLS TECH CO1PETROLEO BRASILEIRO S A – PETROBRAS1PETROLEO BRASILEIRO SA PETROBRAS1
Top patents by PatentIndex Score
12 records- 0193US7531142B2Multifunctional entry device for a downward flow tube reactorPETROLEO BRASILEIRO SA·Filed 2006·Granted May 12, 2009·38 cites·13 claims
- 0277US7087154B2Apparatus and process for downflow fluid catalytic crackingPETROLEO BRASILEIRO SA·Filed 2002·Granted Aug 8, 2006·24 cites·55 claims
- 0356US8568669B2Device for cooling and distributing mixed charges on fixed catalyst bedsHUZIWARA WILSON KENZO·Filed 2010·Granted Oct 29, 2013·1 cites·4 claims
- 0449US2025367629A1Baffle plate and methods of installing baffle plate in a catalyst inlet region of a catalyst cooler with side inletPETROLEO BRASILEIRO S A – PETROBRAS·Filed 2025·Application pending·0 cites
- 0545US2007236011A1Telescopic joint with sliding sealing ringPETROLEO BRASILEIRO SA·Filed 2007·Application pending·0 cites
- 0644US7867321B2Process for disengaging solid and gaseous particles in FCC processes with reduced coke formation in disengager vesselsPETROLEO BRASILEIRO SA·Filed 2007·Granted Jan 11, 2011·0 cites·9 claims
- 0742US7332133B2Cyclone system for disengaging solid and gaseous particles in FCC systems with reduced coke formation in disengager vesselsPETROLEO BRASILEIRO SA·Filed 2004·Granted Feb 19, 2008·0 cites·20 claims
- 0841US7967897B2System and process for the separation of suspensions of spent catalysts and hydrocarbons formed in a fluid catalytic cracking unit with multiple ascending flow reaction tubesPETROLEO BRASILEIRO SA·Filed 2008·Granted Jun 28, 2011·0 cites·11 claims
- 0941US2003194360A1Multifunctional entry method and device for downward flow tube reactorFiled 2002·Application pending·0 cites
- 1038US2007052333A1Frame construction for an air handling unitJOHNSON CONTROLS TECH CO·Filed 2004·Application pending·0 cites
- 1134US7638102B2Fluid flow inversion chamber for feed spray nozzles in FCC unit risersPETROLEO BRASILEIRO SA·Filed 2006·Granted Dec 29, 2009·0 cites·8 claims
- 1233US12025249B2Telescopic jointPETROLEO BRASILEIRO SA PETROBRAS·Filed 2019·Granted Jul 2, 2024·0 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →