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downloadable software for evaluating and modeling the performance of components in heating, ventilating and air-conditioning (HVAC) systems, for use in commercial, residential, and industrial fields; downloadable software for recording and displaying data related to HVAC systems; downloadable software for HVAC system design, sizing and analysis of HVAC equipment, sizing and analysis of HVAC ductwork, measuring and analyzing building energy usage, and measuring and analyzing indoor air quality and air distribution and thermal comfort, all in the field of building construction and repair; Downloadable computer software for assessing and managing energy usage; downloadable software for designing plumbing systems, gas piping systems, fire protection systems, electrical systems, power plant systems, mass and heat balancing systems, thermodynamic systems, propulsion systems, and for designing video games

Providing online non-downloadable software for assessing and managing energy usage; Design for others in the field of software, and design and engineering in the field of plumbing systems, gas piping systems, fire protection systems, electrical systems, power plant systems, mass and heat balancing systems, thermodynamic systems, propulsion systems, and video games; Providing online non-downloadable software for recording and displaying data related to HVAC systems; Providing online, non-downloadable software for HVAC system design, sizing and analysis of HVAC equipment, sizing and analysis of HVAC ductwork, measuring and analyzing building energy usage, and measuring and analyzing indoor air quality and air distribution and thermal comfort, all in the field of building construction and repair; Providing online non-downloadable software for evaluating and modeling the performance of components in heating, ventilating and air-conditioning (HVAC) systems, for use in commercial, residential, and industrial fields