In a nullity suit before the German Federal Patent Court (BPatG) and Federal Supreme Court (BGH) the court and attorney fees are calculated from a fictitious "value in dispute", which is determined by the court as the value of the patent upon filing of the suit plus the sum of damages accrued. As a matter of law, the losing party has to absorb the costs of the other party. If more than one nullity suit is independently brought forward against a patent, this results in a multiple cost risk for the patentee.