MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202641002895 A) filed by P. Sai Krishna; and Y. Nishita Prasad, Chennai, Tamil Nadu, on Jan. 10, for 'solar-powered billboard air purification tower.'

Inventor(s) include P. Sai Krishna; and Y. Nishita Prasad.

The application for the patent was published on Feb. 6, under issue no. 06/2026.

According to the abstract released by the Intellectual Property India: "The present disclosure relates to a solar-powered billboard air purification and disinfection tower comprising a vertically oriented structural framework housing an integrated air filtration and disinfection system, a renewable energy generating system, and a digital advertising assembly. The tower includes a multi-stage air filtration and disinfection system disposed within the framework, an air release system with outlet vents positioned in opposite direction for discharging purified air, a solar power generation system including solar panels to generate power, and an energy storage system comprising a battery bank located in a base compartment of the tower. At least one digital advertising display is mounted on the structural framework and is operatively coupled to a control system. The multi-stage air filtration system includes an air intake section with a perforated grill arranged in a lower portion of the framework, a filtration chamber having a pre-filter, an electrostatic precipitator, a multi-stage filter bank, and a final treatment chamber for air disinfection with virus level filtration system. The control system is configured to coordinate operation of the air treatment system, the solar power system, and the digital advertising display."

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