申请人 |
SERVICES PÉTROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED |
发明人 |
VARKEY, JOSEPH;WIJNBERG, WILLEM A.;SIMANJUNTAK, SURYA;CHANG, SHENG;YUN, JUSHIK;UNAL, BURCU ALTINTAS;KIM, DAVID;GRISANTI VIGOUROUX, MARIA AUXILIADORA |