Today, the U.S. Court of Appeals for the Federal Circuit (CAFC) issued a precedential ruling in Lynk Labs, Inc. v. Samsung Electronics Co., Ltd. affirming a final written decision by the Patent Trial and Appeal Board (PTAB) that invalidated Lynk Lab’s patent claims to alternating current driven LED lights and circuits. In so ruling, the Federal Circuit agreed with the PTAB’s determination that patent applications can be considered prior art printed publications as of the date of their filing, not their publication.

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