Termination if BI Challenges MacroGenics Patent Rights or Collaboration DART Patent Rights Sample Clauses

Termination if BI Challenges MacroGenics Patent Rights or Collaboration DART Patent Rights. If BI or any of its Affiliates or Sublicensees, directly or indirectly, (i) initiates or requests an interference or opposition proceeding with respect to any MacroGenics Patent Right or Collaboration DART Patent Right, (ii) makes, files or maintains any claim, demand, lawsuit, or cause of action to challenge the validity or enforceability of any MacroGenics Patent Right or Collaboration DART Patent Right in a tribunal or forum, or (iii) opposes any extension of, or the grant of a supplementary protection certificate with respect to, any MacroGenics Patent Right or Collaboration DART Patent Right, MacroGenics shall have the right to terminate this Agreement upon *** written notice to BI. Any such termination shall only become effective if BI or its Affiliate or Sublicensee, as applicable, has not withdrawn such action before the end of the above notice period.