Patents/Inventors

Darlan Pontin

Porto AlegreBR1 patent

2 Patents

US124103562025
Hydraulic Cement Composition, Process and Use
Petróleo Brasileiro S.A.—PETROBRAS
0 cites
US119818602024
Hydraulic Cement Composition, Process and Use
PETRÓLEO BRASILEIRO S.A.—PETROBRAS
0 cites