申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;LOGINED B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;EXXONMOBIL - UPSTREAM RESEARCH COMPANY;GRAF, KERMIT;ENDRES, DAVID, MACK;HALL, MARK;PICKENS, JAMES, C. |
发明人 |
GRAF, KERMIT;ENDRES, DAVID, MACK;HALL, MARK;PICKENS, JAMES, C. |