RE2 Expands Intellectual Property with Invention of Fluid Rotary Joint for Underwater Manipulation PITTSBURGH, PA – Dec. 3, 2020 – RE2 Robotics, a leading developer of intelligent mobile manipulation systems, has announced that the U.S. Patent and Trademark Office has issued patent number 10,704,665 for the invention of a fluid rotary joint that is capable of precise positioning while being driven by both fluids and gasses, including water, hydraulic fluid, and air. The patent, "Fluid Rotary Joint and Method of Using the Same," further adds to the Company's mobile manipulation intellectual property and underwater robotics expertise. The invention, which was developed during the design of an inflatable underwater manipulator for explosive ordnance disposal (EOD) applications, can be used in robotic arms to provide precise rotational positioning for dexterous manipulation. It combines a strain wave gear and fluidic actuators in a compact, precise rotary joint. The strain wave gear uses materials with tunable load transmission characteristics for the flex spline, rather than expensive toothed interfaces.