InterDigital Loses First Round in Patent Case Over Nokia

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InterDigital Inc., developer of fundamental mobile-phone technology, lost the first round of its latest effort to get patent royalty payments on sales of Nokia Oyj phones. InterDigital fell the most since December.

Nokia phones, now made by Microsoft Corp., and ones by ZTE Corp. didn’t violate InterDigital patent rights, U.S. International Trade Commission Judge Theodore Essex said in a notice posted on the agency’s website. The judge’s full findings, which are not yet publicly available, are subject to review by the commission, which has the power to block imports of products that infringe U.S. patents.