Mark Identification

MUDSOLV

Serial Number

75647441

Filing Date

Feb 24, 1999

Registration Date

Jul 13, 2004

Trademark by

SCHLUMBERGER TECHNOLOGY CORPORATION

Active Trademark

Classification Information

chemicals for use in oil and gas production for the purpose of removing spent, de-watered drilling fluid(i.e., drilling cake) from a wellbore

Chemicals

repair and maintenance of subterranean wellbore surfaces used in the production of oil and gas, namely, the removal of spent, de-watered drilling fluid(i.e., drilling cake) adhered to the walls of the wellbore

Building Construction and Repair