Common use of Contested validity Clause in Contracts

Contested validity. If VIVENTIA or any of its Affiliates attacks, contests or otherwise disparages or assists another in attacking, contesting or otherwise disparaging the validity of any of the Patent Rights licensed hereunder in any proceeding in any court of competent jurisdiction, including any patent opposition or appeal proceeding involving or relating to the Patent Rights, XOMA shall have the right to terminate this Agreement by written notice. ARTICLE 10 –

Contested validity. If VIVENTIA CELLTECH or any of its Affiliates attacks, contests or otherwise disparages or assists another in attacking, contesting or otherwise disparaging the validity of any of the Patent Rights licensed hereunder in any proceeding in any court of competent jurisdiction, including any patent opposition or appeal proceeding involving or relating to the Patent Rights, XOMA shall have the right to terminate this Agreement forthwith by written notice. ARTICLE 10 –.

Contested validity. If VIVENTIA or any of its Affiliates attacks, contests or otherwise disparages or assists another in attacking, contesting or otherwise disparaging the validity of any of the Patent Rights licensed hereunder in any proceeding in any court of competent jurisdiction, including any patent opposition or appeal proceeding involving or relating to the Patent Rights, XOMA shall have the right to terminate this Agreement by written notice. ARTICLE 10 –.

Contested validity. If VIVENTIA XOMA or any of its Affiliates attacks, contests or otherwise disparages or assists another in attacking, contesting or otherwise disparaging the validity of any of the Patent Rights licensed hereunder in any proceeding in any court of competent jurisdiction, including any patent opposition or appeal proceeding involving or relating to the Patent Rights, XOMA CELLTECH shall have the right to terminate this Agreement forthwith by written notice. ARTICLE 10 –.