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United States Patent and Trademark Office

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Int. Cls.: 1, 7, 9, 37, <strong>and</strong> 42<br />

Prior U.S. Cls.: 1, 5, 6, 10, 13, 19, 21, 23, 26, 31, 34, 35,<br />

36, 38, 46, 100, 101, 103, <strong>and</strong> 106<br />

Reg. No. 3,018,606<br />

<strong>United</strong> <strong>States</strong> <strong>Patent</strong> <strong>and</strong> <strong>Trademark</strong> <strong>Office</strong> Registered Nov. 22, 2005<br />

M-I L.L.C. (DELAWARE LIMITED LIABILITY<br />

CORPORATION)<br />

LEGAL DEPT. - TRADEMARKS<br />

5950 NORTH COURSE DRIVE<br />

HOUSTON, TX 77072<br />

FOR: CHEMICAL DRILLING FLUIDS FOR USE<br />

IN SUBTERRANEAN WELLS, NAMELY, DRIL-<br />

LING MUDS, COMPLETION FLUIDS, WORKOVER<br />

FLUIDS AND WELLBORE FLUIDS; CHEMICAL<br />

PRODUCTS FOR USE WITH DRILLING FLUIDS,<br />

CHEMICAL ADDITIVES FOR USE WITH DRIL-<br />

LING FLUIDS; DRILLING MUDS AND CHEMICAL<br />

DRILLING FLUIDS, IN CLASS 1 (U.S. CLS. 1, 5, 6, 10,<br />

26 AND 46).<br />

FIRST USE 3-1-2004; IN COMMERCE 3-1-2004.<br />

FOR: PETROLEUM INDUSTRY POWER-OPER-<br />

ATED EQUIPMENT FOR DRILLING FLUID PRO-<br />

CESSING (SOLIDS CONTROL), NAMELY,<br />

SHAKERS, DESANDERS, DESILTERS, MUD CLEA-<br />

NERS, CENTRIFUGES AND FLUIDS PROCESSING<br />

UNITS, AND PRESSURE CONTROL EQUIPMENT,<br />

NAMELY, CHOKES, DEGASSERS, CENTRIFUGAL<br />

DEGASSERS, H2S MUD GAS SEPARATORS, DUAL<br />

MUD GAS SEPARATORS FOR HORIZONTAL<br />

DRILLING, AND TOTAL GAS CONTAINMENT<br />

UNITS, IN CLASS 7 (U.S. CLS. 13, 19, 21, 23, 31, 34<br />

AND 35).<br />

FIRST USE 3-1-2004; IN COMMERCE 3-1-2004.<br />

FOR: PETROLEUM INDUSTRY EQUIPMENT,<br />

NAMELY, RIG STABILIZATION SENSORS, MI-<br />

CRO-PROCESSOR CONTROLLED RIG-FLOOR<br />

MONITORS WHICH MONITOR AND DISPLAY<br />

VARIOUS DRILLING FUNCTIONS WITH ALARMS;<br />

ELECTRONIC PIT VOLUME TOTALIZERS AND<br />

TRADEMARK<br />

SERVICE MARK<br />

PRINCIPAL REGISTER<br />

RETURN FLOW SENSORS; DRILLING RECOR-<br />

DERS, IN CLASS 9 (U.S. CLS. 21, 23, 26, 36 AND 38).<br />

FIRST USE 3-1-2004; IN COMMERCE 3-1-2004.<br />

FOR: SUBTERRANEAN WELL DRILLING SER-<br />

VICES, NAMELY, TECHNICAL ADVICE ON DRIL-<br />

LING FLUIDS AND DRILLING FLUID USE, AND<br />

ADVICE ON DATA CONTROL, PRODUCTS CON-<br />

TROL, AND PRESSURE CONTROL, IN CLASS 37<br />

(U.S. CLS. 100, 103 AND 106).<br />

FIRST USE 3-1-2004; IN COMMERCE 3-1-2004.<br />

FOR: SUBTERRANEAN WELL TESTING SERVI-<br />

CESFORUSEINCONNECTIONWITHSUBTER-<br />

RANEAN WELL DRILLING OPERATIONS;<br />

ENGINEERING SERVICES IN CONNECTION WITH<br />

THE SELECTION AND US OF SPECIALIZED<br />

EQUIPMENT FOR SUBTERRANEAN WELL DRIL-<br />

LING OPERATIONS, IN CLASS 42 (U.S. CLS. 100<br />

AND 101).<br />

FIRST USE 3-1-2004; IN COMMERCE 3-1-2004.<br />

OWNER OF U.S. REG. NOS. 1,552,402, 2,151,736,<br />

AND OTHERS.<br />

THE COLORS ORANGE AND BLACK ARE<br />

CLAIMED AS A FEATURE OF THE MARK.<br />

THE MARK CONSISTS OF A STYLIZED M-I<br />

WITH THE LETTERS M AND I IN BLACK AND<br />

WITH THE DASH IN ORANGE AND WIT H THREE<br />

ORANGE LINES SWOOSHING BELOW.

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