In the same year Haraldo da Silva Couto, Julio Cesar Batista [15] patented a design wherein, the smooth disks in the turbine are replaced with innovative disks called Pelton type disks. The main object of this invention is the innovative disk shape, which has the characteristics of Pelton Wheel. This Pelton type disks has a purpose to increase the torque provided by the shaft of the turbine. In 2009 John W. Detch [20] obtained a patent which relates to the field of disk turbines and more particularly to an exhaust portion of a steampowered disk type turbine engine. It is an improved Tesla turbine design incorporating a novel structure wherein the disk stack is oriented horizontally and the hub is closed at its upper end. Vanes which are tapered such that their cross-sectional shape evolves from predominantly solid area at the top of the hub are used. In 2010 Takeo S. Saitoh [05] patented the design of a prime mover based upon a centrifugal reverse flow disk turbine. A plurality of radially engraved channel is used for transporting working fluid from entering ports, placed axially near the turbine shaft. In the same year Robert Fleming [09] patented an application of the Tesla turbine as a hybrid electric power motor system and vehicle. It is a motor vehicle which runs on the Tesla turbine as the main power source.