Filed June 26, 2018

Serial No. 88015590

Registered May 12, 2020

Registration No. 6,050,567

Class Air analysis apparatus for analyzing air pollution and environmental pollution; gas testing instruments for analyzing air pollution and environmental pollution; precision measuring apparatus, namely, for air quality monitoring and analysis of trace gases with respect to air pollution and environmental pollution; residual gas analyzer for air quality monitoring and analysis of trace gases with respect to air pollution and environmental pollution; gas chromatographs for air quality monitoring and analysis of trace gases with respect to air pollution and environmental pollution; ionization apparatus for mass spectrometers with respect to air pollution and environmental pollution; chemical analysis instruments for testing and analyzing the presence of air pollution and environmental pollution; mass spectrometers; micro gas pollution monitoring equipment for Integrated circuit and memory manufacturing; computer software for air pollution monitoring data acquisition, processing, storage and analysis; 021; 023; 026; 036; 038; 100; 101