IC 009. US 021 023 026 036 038. G & S: Electrical and electronic apparatus and instruments as well as computers and computer hardware and software for windmills, wind power plants and wind turbines; namely control and monitoring equipment, namely equipment for automatically turning the generators on or off and for automatic starting after public power line breakdowns, apparatus for over-voltage protection against strokes of lightning; microprocessor equipment for controlling and monitoring constant voltage, frequency, phase conditions, rotor speed, efficiency and thickness of brake pads, temperature, wind direction and wind speed, vibration sensors for installation in mill housings, watt-hour meters

IC 037. US 100 103 106. G & S: Erection, construction, installation, maintenance and repair of windmills, wind power plants, wind turbines and other wind-operated machines; advisory, consultancy and providing information relating to the erection, construction, installation, maintenance and repair of windmills, wind power plants, wind turbines and other wind-operated machines

IC 042. US 100 101. G & S: Technical and legal consultation concerning windmills and wind power plant projects and effecting such projects; development and testing of windmills, wind power plants, wind turbines, wind-operated machines and components therefor; effecting research projects concerning windmills, wind power plants, wind turbines and other wind-operated machines as well as advisory, consultancy and providing information relating to development and testing of windmills, wind power plaints, wind turbines, wind-operated machines and components therefor