Vasumathy M, Mythili Thirugnanam and S.Margret Anouncia, Localization of foreign body with feature characterization on pediatric radiography images, Approved and published by office of the Intellectual Property India, Chennai. Government of India, CBR Number.1861, Published on 2^nd February 2018.

Vasumathy M, Knowledge based shape classification of aspired foreign body on Pediatric radiography images, Approved and published by office of the Intellectual Property India, Chennai. Government of India, CBR Number.8356, Published on 9^th March 2020.