Is there an antecedent of a company managing to own the rights to a common noun that belongs in a dictionnary? Maybe linguistics should start suing that kind of company to set a jurisprudence. Common sense would have it that a company with name x should be able to sue other company named x if they are indeed competiting in the same kind of field over unfair use of name that could lead to confusion. Can we imagine 3d realms suing a game company for a forgotten realms game or Lord of the realms? Nvidia suing Id for the use of the word rage being the makers of the rage3d video card? ( I am giving away my age here ) I hope the court fine them for wasting the court's precious time that could be used for more important cases.