HPI
Mark Identification

HPI

Serial Number

77137608

Filing Date

Mar 22, 2007

Registration Date

Jun 17, 2008

Trademark by

WEATHERFORD TECHNOLOGY HOLDINGS LLC

Active Trademark

Classification Information

Downhole plugs, thru-tubing release devices, packers and setting tools, namely, thru-tubing bridge plugs used in the oil and gas industry

Machinery

Cement slurry blends for bonding in well casing in the oil and gas industry

Nonmetallic Building Materials