MUMBAI, India, Aug. 12 -- Intellectual Property India has published a patent application (202531008658 A) filed by Tata Steel Limited on February 03, 2025, for Process Of Enhancing Weather Resistance And Visual Appearance Of Steel Substrate.

Inventors include Debasis Poddar; Y Bhaskara Rao; and Arup Kumar Halder.

The application for the patent was published on August 07, 2026, under issue no. 32/2026.

Abstract: ABSTRACT PROCESS OF ENHANCING WEATHER RESISTANCE AND VISUAL APPEARANCE OF STEEL SUBSTRATE A process of enhancing visual appearance and weather resistance of a steel substrate is provided. The process comprises cleaning surface of the steel substrate. The process also comprises heating the steel substrate to a first predetermined temperature in a furnace. The process further comprises holding the steel substrate at the first predetermined temperature for a first predetermined time. The process comprises cooling the steel substrate to room temperature. The cooled steel substrate achieves gold (luster brownish) patina coloration.

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