U.S. federal trademark · Serial No. 88645111 · Reg. No. 6429022
Oil and gas well isolation tool, namely, isolation tools employing a metallic sealing element that expands in response to contact with a water-based fluid; Oil and gas downhole tools, namely, zonal isolation packers employing a metallic sealing element that expands in response to contact with a water-based fluid; swellable metal sealant for use in oil and gas zonal isolation applications
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.