Apple is seeking review by the UK Supreme Court in a long-running patent dispute with Optis involving alleged LTE patent infringement. According to reporting, Apple is challenging a lower-court decision that would require it to pay Optis $502 million. The case is set to be heard this week, but the UK Supreme Court has not yet issued a ruling.

The dispute began in 2019, when Optis accused Apple of infringing LTE-related patents. The litigation spans both the United Kingdom and the United States. In the U.S., Apple ultimately wins, avoiding a $300 million damages award that Optis sought. However, the situation in the UK differs, with the outcome depending on how the Supreme Court addresses Apple’s challenge to the damages decision.

Multiple outlets describe the matter as still unresolved despite years of litigation, with the UK Supreme Court proceedings representing a new stage in determining whether the $502 million liability stands.