The Center for Research and Advanced Studies of the National Polytechnic Institute (in Spanish: Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional or simply as CINVESTAV-IPN) is a Mexican non-governmental scientific research affiliated to the National Polytechnic Institute and founded by president Adolfo López Mateos on 17 April 1961, initially planned as a posgraduate department of the National Polytechnic Institute, which was later modified by President José López Portillo, on the 17 September 1982.The modification by President Portillo stipulates that it is a decentralized organ of public interest, with legal personality and own patrimony.