HBO lost an opposition against the following trademark application, in class 34, in the UK:
The opposition was based on an earlier EU trademark “Game of Thrones” in class 34 too. HBO claimed that the later mark is confusingly similar trying to take advantages of the “Game of Thrones” reputation amongst the consumer.
According to the UK Patent Office, however, there is no base for confusion. Although both signs are similar to some extent from a visual and phonetic point of view, conceptually they are completely different. The claimed reputation concerns TV show and according to the Office, there is no direct link to the goods for which the trademark application is applied for.