• All sections
• F - Mechanical engineering; lighting; heating; weapons; blasting
• F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
• F24F 3/153 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature

Patent holdings for IPC class F24F 3/153

Total number of patents in this class: 275

10-year publication summary

Principal owners for this class