Inventor · disambiguated record

Helio Marins David Filho

Also filed as: FILHO HELIO MARINS DAVID

2 granted patents·25 citations·filing 20042006

61Inventor score
Technology areasE21B
Files withWELLSTREAM INT LTD2

Top patents by PatentIndex Score

2 records

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Helio Marins David Filho — Patent Inventor | PatentIndex