In a set of April 2023 complaints, Zeppelin Corporation accused BBK Electronics (together with OnePlus, OPPO, Realme, and Vivo Communication Technology), Xiaomi, and ZTE of infringing a single patent generally related to a smartphone with a display that includes a particular layer of fluorescent material. In an additional suit, also filed in the Eastern District of Texas, the inventor-controlled plaintiff has now pegged Verizon (4:23-cv-00454) with the same patent, focusing infringement allegations on the sale of certain Samsung Galaxy-series smartphones and Apple iPhones. An exhibit attached to the new complaint purports to chart the iPhone 14 Pro, given as an exemplary product for its inclusion of the A16 Bionic Chip with 6-core processor, an OLED display, and Wi-Fi 6 and 5G cellular connectivity.