The patenting activities of Michael Idvorsky Pupin

In this paper is given an overview of the patenting activities that Michael Idvorsky Pupin undertook in order to protect his inventions both in the United States of America and other countries, wherein are presented the results of an investigation that the author had been undertaken together with Mr. Slobodan Stojkovic, a patent engineer. One previously unknown US patent had been uncovered as result thereof, thus enabling the completion of the list of Michael Pupin´s US patents. 6 Pupin´s patents for his prevously unknown inventions granted in other countries than the USA that do not corespond to any of his US patents had been also found.