SAN FRANCISCO—The U.S. International Trade Commission will let stand a determination last year by an administrative law judge finding that patents asserted by Knowles Electronics LLC against Analog Devices Inc. (ADI) are invalid.
In a ruling issued Jan. 21, the ITC said that it has declined to review the initial determination issued by Administrative Law Judge Robert K. Rogers Jr. last November.
"This case is now officially concluded and Analog Devices has prevailed," ADI said through a statement. "We will continue to supply innovative MEMS microphone products to our customers."
Last month, Rodgers ruled that Knowles infringes valid claims from a wafer anti-stiction application patent held by ADI.