On April 14, 2020, the U.S. Court of Appeals for the Federal Circuit (CAFC) reversed a decision of the U.S. District Court for the Eastern District of Texas in the matter of Ericsson Inc. v. TCL Commc’n Tech. Holdings Ltd., finding invalid Ericsson’s patent related to a telecommunications software access and control system.
CAFC found that although an allegedly novel aspect of the invention was described in detail in the specification, the specification “cannot be used to import details [] if those details are not claimed.”
