· Patent registration for magnetic water faucet of water pipe penetration type
· Patent registration for agricultural dryer

· Patent registration for magnetic water faucet of water meter part type
· Development of production technology for agricultural dryers

· Development of production technology for magnetic water faucet
· Development of core technology for agricultural dryer

· Development of core technologies for magnetic water faucet

· Study on inverter system and pressure regulating tank

· Study on high performance medium-low thin film solid oxide fuel cell

· Evaluation of technology value of new late-night electric boilers to be supplied (Korea Technology Finance Corporation)
· Recognization and patent of new late-night electric boiler by Ministry of SMEs and Startups

· Development and experiment of general electric boiler for export to China
· Development and patent application of new late night electric boiler
· Experiment of Russian friction thermal boiler efficiency
· Experiment on boiler for woodchips and lignite

· Pellet boiler development (National project)
· Performance experiments for powerless pellet stoves
· Performance experiment of Converse pellet stove
· Patent registration for pressure-free water heater

· Development of sodium boiler

· Patent registration for molded coal boiler
· Utility model registration of hot water tank with closed interior paint opening
· Development of vacuum tube solar water heater

· Patent registration of heat medium hot water storage boiler combining of heat medium oil boiler and water heater as one

· Utility model registration of heat medium hot water storage boiler with increased hot water production using water pipes in combustion chamber
· Utility model registration of hwamok boiler

· Utility model registration of cokes boiler

· Design registration of electrical ondol pipe for heating

· Design registration of deflated variable for water supply

· Utility model registration of heating system using ondol pipe heater
· Utility model registration of electric heating element for heating
· Utility model registration of wire connections