MUMBAI, India, Feb. 13 -- Intellectual Property India has published a patent application (202641008450 A) filed by K Pavan Kumar; Prof T. V. K Bhanu Prakash; Andhra University; and Aditya Mukherjee, Visakhapatnam, Andhra Pradesh, on Jan. 28, 2026, for 'enhanced thermal stability of nano-doped paraffin wax for low-temperature phase change energy storage.'

Inventor(s) include K Pavan Kumar; Prof T. V. K Bhanu Prakash; and Aditya Mukherjee.

The application for the patent was published on Feb. 13, under issue no. 07/2026.

According to the abstract released by the Intellectual Property India: "The present invention discloses a phase change material (PCM) composite comprising paraffin wax uniformly dispersed with graphene nanoplatelets (GNPs). A fabrication method involving controlled ultrasonic dispersion and solidification yields a composite with significantly enhanced thermal conductivity and cyclic stability. The improvement in thermal degradation resistance is quantitatively demonstrated through thermogravimetric analysis and model-free kinetic methods (Flynn-Wall-Ozawa, Starink, and Kissinger-Akahira-Sunose), which confirm a substantial increase in activation energy and a higher onset degradation temperature proportional to GNP content. A machine learning framework, utilizing random forest regression trained on experimental thermal data, achieves high-fidelity prediction of composite performance for system design. The resulting material exhibits reduced supercooling, superior heat transfer rates, and long-term durability, making it functionally advantageous for low-temperature thermal energy storage applications, including refrigeration, cold chain logistics, and energy-efficient building insulation."

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