Art. 49 CPC; forfeiture of the right to request recusal; substantiation of internal constellation of a group of companies; acting as address of service for the IPI is not a ground of recusal. "As soon as it has become aware" has to be interpreted strictly; in no case the deadline can be longer than 10 days (r. 5, 6). If the recusal is reasoned based on the relationship between companies of a group of companies, this relationship must be substantiated in detail (r. 7). The fact that the judge or the judge’s law firm is acting as a purely administrative address of service for the Swiss Federal Institute of Intellectual Property (IPI) is no ground of recusal (r. 7).