MUMBAI, India, May 29 -- Intellectual Property India has published a patent application (202641043703 A) filed by Christ University, Bangalore, Tamil Nadu, on April 6, for 'a role based cooking fuel transition matrix for classifying household fuel stacking dynamics.'
Inventor(s) include I D Monica; and Marie Joseph Gerard Rassendren.
The application for the patent was published on May 29, under issue no. 22/2026.
According to the abstract released by the Intellectual Property India: "This invention presents a role-based cooking fuel transition matrix that systematically classifies household fuel-use patterns under conditions of persistent fuel stacking. Unlike conventional binary or linear approaches, the model distinguishes household cooking practices based on the functional role of fuels used in primary and secondary cooking activities. By distinguishing core meal preparation from complementary cooking tasks, the model facilitates identification of partial and complete transitions between non-clean and clean cooking fuels. The framework comprises four ordered transition categories: complete non-clean, non-clean dominant mixed use, clean dominant mixed use, and complete clean, represented through an integrated visual transition pathway and an operational matrix table. The visual component depicts ordered movement across transition stages, while the matrix translates observed cooking behaviour into a standardised household-level classification tool. The model is grounded in actual cooking practices rather than fuel ownership or nominal access, and it supports consistent application across cross-sectional and longitudinal analyses. Collectively, the matrix facilitates a structured examination of cooking energy transitions and provides a foundation for evaluating their broader socioeconomic, public health, and environmental implications, including linkages to human development and policy effectiveness."
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