U.S. federal trademark · Serial No. 88112585 · Reg. No. 5922989
Engineering services, namely, testing, adjusting, and balancing HVAC systems in the nature of calculating building air flows and duct pressure testing to ensure proper functioning; engineering services, namely, building HVAC tune-up services in the nature of conducting ventilation surveys to determine building pressures and air leakages, measurement and verification of air quality for cleanrooms and measurement and verification of air flows and relative pressures between rooms for the purpose of controlling air quality; engineering services, namely, site sustaining services in the nature of testing and monitoring HVAC systems to ensure proper functioning; engineering services, namely, sound and vibration testing services in the nature of measuring sounds and vibrations produced by HVAC systems
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