The investigation phase and the period mentioned in the first paragraph of article R. 716-8 may be suspended:
1° Where the application for a declaration of invalidity is based in whole or in part on an application for registration of a trade mark or geographical indication or on a geographical indication whose specification is the subject of an amendment affecting the basis of the application for a declaration of invalidity;
2° In the event of an application for a declaration of invalidity, revocation, claim of ownership or assignment under Article L. 712-6-1 of the trade mark or one of the trade marks on which the application for a declaration of invalidity is based, in whole or in part;
3° In the case of an action against the name or business name, the domain name, the trade name or the sign, on which the application for a declaration of invalidity is based, in whole or in part;
4° At the joint request of the parties, for a period of four months renewable twice;
5° At the initiative of the Institute, in particular pending information and elements likely to have an impact on the outcome of the dispute or the situation of the parties.