Mark Identification

THRU-TUBING TECHNOLOGY

Serial Number

76057924

Filing Date

May 26, 2000

Trademark by

CORE LABORATORIES GLOBAL N. V.

Classification Information

WELL FINISHING TOOLS, NAMELY CONTINUOUS TUBING OVERSHOT, CUTTING OVERSHOT, PACK-OFF SUB, COIL TUBING OVERSHOT EXTENSIONS, DRIVE BUSING, DOMED MOUSE TRAP OVERSHOT, MECHANICAL "GS" TYPE A SPEAR, MECHANICAL "GS" TYPE A SPEAR WITH XX PRONG, BULL DOG SPEAR, ROPE SPEAR, BOOT COLLAR BASKET, VENTURI JET JUNK BASKET, SKIRTED MAGNET, ROTARY SHOE, HYDRAULIC TUBING CUTTER, EXTERNAL MECHANICAL CUTTER, FD HYDRAULIC DISCONNECT, CIRCULATION SUB, DUAL CIRCULATION SUB, DRAIN SUB, DYNAMIC CLOSING CIRCULATION SUB, DRAIN SUB, DYNAMIC CLOSING CIRCULATION SUB, MOTORIZED BAIT RECEPTACLE, LEAD IMPRESSION BLOCK, MECHANICAL BOW SPRING CENTRALIZER, HYDRAULIC BOW SPRING CENTRALIZER, ROTATION STABILIZER, G-STOP HYDRAULIC SETTING TOOL, BULL DOG PACK-OFF SPEAR

Machinery

RENTAL OF WELL FISHING TOOLS AND WELL FISHING EQUIPMENT; INSTALLATION OF WELL FISHING AND DRILLING TOOLS AND EQUIPMENT; AND WELL DRILLING SERVICES, NAMELY FISHING, TUBING WINDOW CUTTING AND WASHOVER SERVICES

Building Construction and Repair

RESEARCH AND DEVELOPMENT OF PRODUCTS FOR WELL DRILLING AND SERVICING; RESEARCH, DEVELOPMENT, DESIGN, AND TESTING OF NEW TOOLS FOR WELL-DRILLING AND WELL-SERVICING FOR OTHERS

Computer and Scientific