Judge Raymond Chen, U.S. Court of Appeals for the Federal Circuit. Photo by Diego M. Radzinschi/ALM.

The U.S. Court of Appeals for the Federal Circuit on Thursday handed a big win to wireless giant Ericsson but disappointed intellectual property lawyers eager for more guidance on litigating standard-essential patents.

A unanimous panel of the Washington, D.C.-based appellate court threw out a 115-page order from U.S. District Judge James Selna of the Central District of California. Following a closely watched 10-day bench trial in 2017, Selna established a new framework for determining fair, reasonable and non-discriminatory royalties for SEPs.