Patent No.550 for effective design
Plate heat exchanger (2002)
Patent No.558 for effective design
Aerodynamic silencer (2002)
Patent No.565 for effective design
Solar collector (2002)
Patent No.664 for effective design
Photovoltaic installation (2004)
Industrial design certificate
Industrial design certificate No.3916 – Polyvalent installation for domestic hot water supply (2000)
Industrial design certificate No.3917 – Heating boiler with liquid and gas fuel (2000)
Industrial design certificate No.3918 – Air rotary distributor (2000)
Industrial design certificate No.3919 – Axial fan (2000)
Industrial design certificate No.4284 – Ducted fan (2001)
Industrial design certificate No.4285 – Bare tube radiators (2001)
