MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202511114695 A) filed by Deen Dayal Upadhyaya Gorakhpur University on November 20, 2025, for A Portable Colorimetric Arsenic Detection Kit With Strip-Based Visual Readout System.

Inventors include Priyanka Bharti; and Sarad Kumar Mishra.

The application for the patent was published on October 23, 2026, under issue no. 43/2026.

Abstract: The present invention relates to a portable colorimetric arsenic detection kit for rapid, on-site determination of arsenic in water samples. The kit comprises a strip-based detection device, a stabilized silver nitrate reagent, and a visual color reference chart. The system employs silver nitrate chemistry coupled wi...