U.S. federal trademark · Serial No. 78778127 · Reg. No. 3331820
Engineering, design, development, and consulting services in the field of Stirling engines, Stirling coolers, pulse-tube coolers and linear compressors; analysis, design and development of heat engines, mechanical cooling devices, solar heating apparatus and solar and wind energy conversion devices; 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 engines, burners for external combustion engines, linear motors and linear alternators; design for others of free-piston machines and controls for free piston machines
Electric powered Stirling coolers [ and pulse-tube coolers ] for refrigeration, cryocoolers, and cooling electronic components, liquefying gases, cooling superconducting materials, cryosurgery, preservation of blood and medical samples
Stirling engines not for land vehicles; electric powered gas compressors for use in refrigeration, [ clean air compression, oil free compression of gases, oxygen compression, and ventilation of medical patients; free piston Stirling engines for use in educational demonstrations of the operating principles of the engines; ] electric alternators driven by free piston Stirling engines; control systems for free piston machines namely, interconnected electrical circuits and transducers, sold as a unit with the machines
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.