New Standard Set To Test Whether A Patent Is Ambiguous.

The United States Supreme Court remanded a patent case involving a heart rate monitor used with exercise equipment to the Federal Circuit to apply a new standard regarding whether or not a patent is ambiguous. The high court stated: “[W]e hold that a patent is invalid for indefiniteness if its claims, read in light of the specification delineating the patent, and the prosecution history, fail to inform, with reasonable certainty, those skilled in the art about the scope of the invention.”  (Nautilus, Inc. v. Biosig Instruments (U.S. Sup. Ct.; June 2, 2014)134 S.Ct. 2120, [189 L.Ed.2d 37].)