MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202621031886 A) filed by Dhanashri Jagdish Kashyap, Amalner, Maharashtra, on March 17, for 'process for preparing sodium hydroxide by utilization of biodegradable waste-derived sensitizers using solar energy.'

Inventor(s) include Dhanashri Jagdish Kashyap.

The application for the patent was published on May 1, under issue no. 18/2026.

According to the abstract released by the Intellectual Property India: "Now a days natural dyes have emerged as a sustainable, environment friendly, economically viable alternative to synthetic dyes. This article focused on utilization of extracted natural dyes i.e. Yellow Marigold Flower Dye and Dried Walnut Shells Dye ...