CERTIFICATIONS & PATENTS

Patents

– 36 Patents

Air Handling Units – 19 Patents

Air Handling Unit with Fault Diagnosis Function - Patent No. 10-2556062

Filter Holding Frame Assembly for Air Conditioning Units to Reduce Fine Dust - Patent No. 10-2428365

Control Method for Rotary Heat Exchanger in Energy-Saving Air Conditioning System - Patent No. 10-2410128

Air Handling Unit -
Patent No. 10-2458902

Air Conditioning System with Indirect Evaporative Cooling for Outdoor Air - Patent No. 10-1702080

Anti-Corrosion Coating Composition for Air Conditioning Systems - Patent No. 10-1692929

Air Handling Unit with Turbulence Generator to Prevent Temperature Stratification - Patent No. 10-0888453

Heat Exchangers – 3 Patents

Molding Device for Embossed Heat Exchange Sections of Heat Exchange Plates - Patent No. 10-0868021

Rotary Heat Exchanger -
Patent No. 10-0916768

Method and Device for Combining Heat Exchange Plates in Plate Heat Exchangers, and Resulting Heat Exchange Plate Structure - Patent No. 10-0918607

Ceiling-Type Air Handling Unit – 1 Patent

Large-Capacity Heat Pump Air Handling Unit - Patent No. 10-0877982

Air Circulation Units – 5 Patents

Ventilation Unit -
Patent No. 10-0525750

Ventilation System for Lowering Apartment Ceiling Height - Patent No. 10-0791448

Ventilation Unit -
Patent No. 10-0532188

Asymmetric Hybrid Waste Heat Recovery Air Circulation Unit - Patent No. 10-1270510

Air Circulation Unit with Heat Exchanger Bypass Function and Indoor Airflow Conversion - Patent No. 10-2250975

Others – 8 Patents

Cooling Tower with Guide Vanes and Exhaust Fan for Plume Reduction - Patent No. 10-1690694

Blade Angle Adjustment Device for Axial Fan Used in Ventilation Systems - Patent No. 10-0525481