About 4 Trademarks found that are filed by the attorney Steve A Littlefield

Well drilling, completion, and testing analysis services for the oil and gas exploration and production industry, namely, using computers and computer software to visually and graphically determine the overall effect on the fluid displacement process, namely, analyzing, modeling and changing fluid properties and flow parameters including but not limited to fluid densities, rheological properties and fluid volumes

High performance water based drilling muds for use in drilling subterranean oil and gas wells

oil and gas well treatment, namely, completion and workover of oil and gas wells using chemical preparations and compositions, completion fluid chemicals, drilling muds, drilling fluid additives and chemical viscosifiers

chemical preparations, products, and compositions, namely, ethylene derived ester based fluid in the nature of continuous phase and calcium chloride, sodium chloride brine, and inorganic salt solutions as the internal phase of an invert emulsion, organophyllic clay viscosifier surface active organics, and weight material, all for use in oil fields, gas fields, oil production or gas production; chemical preparations, products, and compositions, all for use in drilling, completion and workover of oil and gas wells, namely, drilling, drill-in and completion fluids; chemical additives for use in drilling, completion and workover of oil and gas wells; completion fluid chemicals, drilling muds, drilling fluid additives and chemical viscosifiers, all for use in drilling, completion and workover of oil and gas wells