Intellectual Property India Publishes Patent Application for A Process For Controlled Atmospheric Fabrication Of Activator-Doped Rare-Earth-Free Long- Afterglow Powder

MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202641127346 A) filed by National Institute Of Technology Warangal on October 26, 2026, for A Process For Controlled Atmospheric Fabrication Of Activator-Doped Rare-Earth-Free Long- Afterglow Powder.

Inventors include Kak Durga Prasad; and Haranath Divi.

The application for the patent was published on October 30, 2026, under issue no. 44/2026.

Abstract: TITLE: A PROCESS FOR CONTROLLED ATMOSPHERIC FABRICATION OF ACTIVATOR-DOPED RARE-EARTH-FREE LONG-AFTERGLOW POWDER The present invention relates to a process for preparing a rare-earth-free long-afterglow luminescent powder. The process comprises zinc sulphide (ZnS) as a host material, cupric chloride a...