• All sections
• F - Mechanical engineering; lighting; heating; weapons; blasting
• F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
• F24F 8/133 - Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering by direct contact with liquid, e.g. with sprayed liquid

Patent holdings for IPC class F24F 8/133

Total number of patents in this class: 86

10-year publication summary

Principal owners for this class