U.S. federal trademark · Serial No. 85359651 · Reg. No. TMA821811
Indoor air quality systems, namely, HEPA filters for household use in HVAC systems and stand-alone filter systems; heat recovery ventilators; energy ventilators; and ventilating fans for commercial and industrial use
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.