Luis Adolfo Velloso Pradel

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Porto Alegre, BR

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Patents Grantslast 30 patents

Information Patent Grant
Heating system for tanks for assembly for supporting the floating r...
- Patent number 6,290,083
- Issue date Sep 18, 2001
- Petroleo Brasileiro S.A.
- Aldyr Witter
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Vacuum-relief valve for the floating roofs of tanks for storing liq...
- Patent number 6,273,287
- Issue date Aug 14, 2001
- Petroleo Brasileiro S.A.-Petrobras
- Aldyr Witter
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Method for inverting the convex configuration of a liquid-product s...
- Patent number 6,241,924
- Issue date Jun 5, 2001
- Petroleo Brasileiro S.A.-Petrobras
- Aldyr Witter
- E04 - BUILDING