SIERRA ENGINEERING
USPTO Trademark Record · Serial No. 75185835
Trademark details
It was initially claimed by Drennon/Castillo, Ltd. on 19961023.
That brand applies to the following goods and services:on-site petroleum engineering services involving the drilling and completion of oil and gas wells including the on-site supervision and implementation of drilling operations, including selection of drilling parameters and drilling fluid and drilling fluid additives, the insertion of tubular goods, namely, casing and tubing strings into wells, and completion of wells.
Currently that trademark is represented by trademark attorney(s): WILLIAM D. JACKSON.
You can learn more about that trademark on the USPTO website: View the USPTO record
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