Nautilus, Inc. v. Biosig Instruments, Inc.
United States Supreme Court
572 U.S. 898
Relevant factsFree
Biosig's patent claimed a heart-rate monitor whose two electrodes were mounted "in spaced relationship with each other," without further precision. Nautilus, having acquired the technology's original licensee, was sued for infringement and argued the claim was indefinite; the Federal Circuit held the claim was not indefinite because it was not "insolubly ambiguous."
IssueFree
Whether a patent's claim is invalid for indefiniteness if the claim fails to provide reasonable certainty about the scope of the invention.
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