Nikola Tesla May 18, 1885. Obtained the patent on regulator for Dynamo-Electric Machines 1886. During the economic crisis, his company went bankrupt; he was a sewer worker in New York January - March 1886. Patents on dynamo-electric machine and thermo magnetic motor April 1887. With A.K. Brown\'s help, Western Union Telegraph Company gave financial means and he established Tesla Electric Company; built a laboratory in New York; worked on motors and generators May 26, 1887. Patent on Pyromagneto-Electric Generator October 12, 1887. Applies his first patent on Alternating-Electric-Current Motor and on Electrical Power Transmission May 16, 1888. Gives a lecture on new system of alternating current motors and transformators in the American Institute of Electrical Engineers; George Westinghouse purchases his patents 1889. Became a United States citizen February - June 1889. Patents on Method of Operating Electro-Magnetic Motors, Method of Obtaining Direct from Alternating Current and on Armature for Electric Machines 1889/1890. Visited his homeland May 20, 1890. Gave a lecture on \"Experiments with Alternate Currents of Very High Frequency and Their Application to Methods of Artificial Illumination\" in the American Institute of Electrical Engineers October 1890. - January 1892. Extremely productive period; applied the patents on Alternating-Current Generator, on Method of and apparatus for Electrical Conversion and Distribution, on Electrical Meter, on System of Electric Lighting, on Electric Incandescent Lamp, on Electrical Condenser, on Electrical Conductor, on Incandescent Electric Light and on Electric Railway System. In 1891 he invented the Coil Electricity science NIKOLA TESLA TeslaCoil ThePrestige severina wmv inventions drmegavolt Prestige Tags: Electricity orson welles edison thomas alva science Nikola Tesla TeslaCoil rade serbedzija smiljan gospic lika croatia hrvatska serb energy Coil croat croatian cro