Nicholas Roosevelt (inventor) 74-gun ships. In 1797, with Robert R. Livingston and John Stevens, he agreed to build a boat on joint account, for which the engines were to be constructed by Roosevelt, and the propelling agency was to be that planned by Livingston. The experiment failed, the speed attained being only equivalent to about in still water. On September 6, 1798, Roosevelt described and earnestly recommended to Livingston a vertical wheel, which is the first practical suggestion of the combination that made steam navigation a commercial success, although four years later Robert Fulton believed that chains and floats were alone to be
First to file and first to invent argue that the FITF aligns the U.S. with the rest of the world, according to the original U.S. patent system, and brings more certainty, simplicity and economy to the patent process, all of which allow greater patent participation by startups. First to file and first to invent First to file (FTF) and first to invent (FTI) are legal concepts that define who has the right to the grant of a patent for an invention. The first-to-file system is used in all countries. There is an important difference between the strict nature of the FTF under the European Patent Office (EPO)