Stirling engines for driving machines; water pumps coupled to and driven by stirling cycle engines for agricultural purposes, irrigation, pumping water for plants and animals, domestic water supply and drainage; free piston stirling engines for use in educational demonstrations of the operating principles of the engines; electric alternators driven by free piston stirling engines

Electric powered stirling coolers for refrigeration, cryo- cooling, and cooling electronic components, liquefying gases, cooling superconducting materials, cryosurgery, preservation of blood and medical samples

Technical consultation in the field of engineering; analysis, research, design engineering, and product development for others in the field of free-piston machines, free piston machines coupled with other machines, stirling heat engines, mechanical cooling and cryocooling devices, linear compressors, biomass fired electric generators, solar and wind conversion apparatus, fuel-fired compressors coupled to and driven by stirling engines, free-piston stirling coolers driven by free-piston stirling engines, turbines driven by free-piston stirling engine, burners for external combustion engines; linear motors; and linear alternators