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In several recent cases involving subject matter as diverse as genes, medical diagnosis, and online advertising, the U.S. Supreme Court appears to be trying to narrow the boundaries of patent-eligible subject matter defined by the Federal Circuit
A claim construction which results in a party avoiding patent infringement by adding one extraneous feature to an allegedly infringing article is not a sensible construction, according to the Court of Appeal in Gemstar-TV Guide International & Others v Virgin Media Ltd & Others
