MUMBAI, India, March 15 -- Intellectual Property India has published a patent application (202331061078 A) filed by Mr. Ankuran Pathak; and Mrs. Monsumi Kakoty, Guwahati, Assam, on Sept. 11, 2023, for 'net-zero grey-water and rainwater treatment and utilization system for multi-storeyed buildings and method thereof.'

Inventor(s) include Mr. Ankuran Pathak; and Mrs. Monsumi Kakoty.

The application for the patent was published on March 14, under issue no. 11/2025.

According to the abstract released by the Intellectual Property India: "A simple-to-use and energy efficient grey water and rainwater treatment and utilization system and method for the same is provided in the present invention. The invention provides a novel combination of elect...