Mark Identification

DRILLAHEAD

Serial Number

76373288

Filing Date

Feb 22, 2002

Registration Date

Oct 14, 2003

Trademark by

HALLIBURTON ENERGY SERVICES INC.

Active Trademark

Classification Information

Computer software for use in the oil and gas industry for calculating drilling fluid hydraulics, namely, providing downhole pressure drop and hydraulic modeling during well planning for real-time operations at the rig site

Electrical and Scientific Apparatus