Altogether the brothers had active part in a dozen different suits in the United States against infringers--and there were suits in France and Germany in each of which about a dozen infringers were involved. Most of the suits in the United States did not go beyond the early stages, as the infringers were not disposed to continue after a preliminary injunction had been issued. But three suits were of special importance. One of these was against Louis Paulhan, French aviator, who was about to give exhibitions in the United States, using planes made in France. Another was against Claude Grahame-White, English aviator, also about to give exhibitions in the United States with planes that infringed the Wright patents. The most important suit of all was against the Herring-Curtiss Co. and Glenn H. Curtiss. This case was bitterly contested and was carried up to the U. S. Court of Appeals. It was brought by the Wright brothers, late in 1909, but The Wright Co., formed shortly afterward, succeeded the brothers as complainants. Because of the importance of this suit in aviation history, it is worth while to examine the background of the relations between the Wrights and Glenn Curtiss. The Wrights’ personal acquaintance with Curtiss began in May, 1906, when he wrote to them in regard to the light motors of which he was a manufacturer. Then in early September, 1906, Curtiss visited the Wright office and workshop. He was brought there by his friend, Captain Thomas S. Baldwin, a well-known aeronaut, who was giving exhibition flights in Dayton with his dirigible balloon on which he used a motor he had persuaded Curtiss to build for him. It was to make repairs on that motor that Curtiss had come to Dayton. After that meeting, the four men, Curtiss, Baldwin, and the Wrights, were together much of the time for several days. When in response to questions about their work, the Wrights showed a number of photographs of their flights made at the Huffman pasture during the two previous years, Curtiss seemed much astonished. He remarked that it was the first time he had been able to believe anyone had actually been in the air with a flying-machine. Long afterward, in an interview in the New York _Times_ (February 28, 1914), Baldwin recalled the many talks he and Glenn Curtiss had with the Wrights in that fall of 1906. “I sometimes suggested to Curtiss,” Baldwin told the interviewer, “that he was asking too many questions, but he kept right on. The Wrights had the frankness of schoolboys in it all and had a rare confidence in us. I am sure Curtiss at that time never thought of taking up flying.”