U.S. federal trademark · Serial No. 76146257 · Reg. No. 2667877
glass microbubbles used as an additive in low density oil and/or gas drilling fluids and chemical oil and/or gas drilling fluids containing glass microbubbles
custom manufacture and mixing of oil and/or glass drilling fluids containing glass microbubbles
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.