I have figured out also, with the same accuracy with which I once figured out the invention, that those hundred million dollars are not in the pockets of the telephone company. They must be, therefore, in the pockets of the American public. The invention made it possible to provide the telephone service, which is now being given, at a lower rate than would otherwise have been possible. The List of Pupin's Patents Published in U.S.A. Michael Pupin in his laboratory Michael Pupin has patented 24 inventions. The first one in 1894 and the last in 1923.
Inventions are in the fields of telephony, telegraphy and radio.
He became world famous inventing the process of pupinisation , which made very long distance transmission of text and speech possible. So, this process was given his name. 515 Art of distributing electrical energy by alternating currents Published 2. 516 Electrical transmission by resonance circuits Published 2. The son of illiterate parents who encouraged his education, Pupin in 1890 became an instructor in mathematical physics at Columbia University, New York City.