On August 26, 2026, a jury in the U.S. District Court for the Eastern District of Texas ruled on a lawsuit filed by Celerity IP LLC and its partners against AT&T, T-Mobile, and Verizon regarding cellular communications standard-essential patents: none of the three carriers infringed the patents in question, and all nine patent claims asserted by the plaintiffs were found invalid. The jury also found that the three carriers, as well as Nokia and Ericsson—which supply network equipment to them—had engaged in good-faith licensing negotiations, while the plaintiff and its affiliates had failed to fulfill their FRAND licensing obligations.

Celerity is the exclusive licensee of the patents at issue in this case and has long collaborated with ASUS and Innovative Sonic Limited on the licensing and enforcement of these patents. In October 2023, the three companies jointly filed six patent infringement lawsuits against AT&T, T-Mobile, and Verizon, respectively, alleging that the 4G and 5G wireless networks operated by the three major U.S. telecommunications carriers infringed the relevant standard-essential patents.

The six cases are as follows:

Because the six cases involved interconnected proceedings and counterclaim arrangements during the litigation process, the court consolidated the relevant cases as a main case and member cases. Among them, 2:23-cv-00486 serves as the main case.

It is worth noting that this case is closely related to the previous patent dispute between Nokia and ASUS. On June 25, 2026, Nokia and ASUS reached a settlement regarding their video patent litigation, agreeing to determine the licensing terms through arbitration. However, Celerity, a licensing company partnering with ASUS, continues to sue Nokia and Ericsson’s customers (namely, the three major carriers) in the Eastern District of Texas. Consequently, Nokia and Ericsson have joined the case as intervenors to defend their customers and their own products.