Supreme Court questions patent tribunal's constitutionality

By Andrew Chung (Reuters) - U.S. Supreme Court justices on Monday signaled they may rein in the power of in-house judges serving on a U.S. Patent and Trademark Office tribunal who have the ability to cancel patents in a case involving a dispute between surgical device makers. Justices raised questions during arguments in the case about the constitutionality of the agency's selection of the judges and grappled over how to address the issue. Their ruling, due by the end of June, could jeopardize the work of a tribunal called the Patent Trial and Appeal Board that adjudicates the validity of hund...