Between June and July 2025, ASUS Technology Licensing Co., Ltd., along with its affiliated entity, Innovative Sonic Co., Ltd., initiated patent infringement lawsuits against Xiaomi, OPPO, and their respective subsidiaries Realme and OnePlus. These legal actions were taken at the Munich branch of the European Unified Patent Court (UPC). The patents at the center of the dispute are EP3346616 and EP2802185, both of which pertain to wireless communication technologies.

It's worth noting that ASUS had previously lodged similar lawsuits against Xiaomi and OPPO in the Munich Regional Court in Germany. The current round of lawsuits is primarily aimed at foldable and high - end flagship models, such as the Xiaomi Mix Fold 4 and the OPPO Find X8 series. These lawsuits involve core technologies, including 5G communication and image processing.

As a relative newcomer in the mobile phone patent landscape, ASUS's decision to file these lawsuits could potentially be part of its patent negotiation strategy. In the mobile phone industry, patent lawsuits among companies frequently conclude with settlements. This particular lawsuit has the potential to significantly influence Xiaomi's and OPPO's business strategies and presence in the European market.