The second or subsequent user of a mark who may or may not have rights in the mark depending whether the mark is being used in the same territory as the senior (first) user. The senior user of a mark has rights superior to all others, and can generally exclude others from using their mark. However, a junior user may still have rights in the mark if the junior user is using the mark in a different territory than the senior user, or the junior user registers the mark federally prior to the senior user. If the junior user registers first, then the junior user obtains nationwide priority, and can exclude all uses of the mark except the senior user's use of the mark in the senior user's own territory.