In April of 1887, the Tesla Electric Company was born in southern Manhattan and Tesla finally had the opportunity to buildin realitythe entire electrical systems, from generators through transformers to motors, that had been in his visual memory since that day in Budapest.
When he applied for the patent on his invention, he was directed by the patent office to rework and resubmit it broken into seven separate sections to reflect the inventive scope of the work. U.S. patents numbered 381,968 through 381,970 and 382,279 through 382,282 were issued on May 1, 1888.
The engineering fraternity began to notice Tesla and he was persuaded to address the American Institute of Electrical Engineers on May 16, 1888. Tesla's description of the theory and realization of his inventions was greeted as a masterwork; his genius was recognized.