9 (b) Failure to supply the local market with the patented product, or supplying it under prohibitive terms. (c) Stopping the production of the patented item or its production in a disproportionate manner, given the production capacity and the market needs. (d) Undertaking acts or practices which have adverse effect on the free competition, according to the prescribed legal norms. (e) Exercising of the rights conferred by this Law in a manner that adversely affects the transfer of technology. In all above cases, the non-voluntary license is granted without recourse to negotiation or the expiry of a time limit thereto, even if the non-voluntary license is not intended to satisfy the needs of the domestic market. The Patent Office may refuse to terminate the non-voluntary license, where the conditions that called for it are likely to remain or to reoccur. The compensation due to the owner of the patent shall take into account the prejudice caused by his arbitrary or unfair competition practices. The Patent Office may revoke the patent if, two years after the grant of a non-voluntary license, it became clear that the grant, of that license was not adequate to remedy the adverse effects caused to the national economy by the patent owner`s abuse of his rights or his unfair competition practices. Any concerned party may challenge the revocation of a patent before the Committee provided for in Article 36, and in accordance with the conditions and procedures prescribed in the Regulations. (6) Where the exploitation of an invention by the legitimate patent holder requires inevitably the use of another invention, underlying concrete technical advance as well as technical and economical significance compared to the other, he shall be entitled to obtain a non-voluntary license for the exploitation of the other invention, in which case the othermpatent holder shall equally have the same right. The licensed exploitation of one patent may not be assigned without the corresponding assignment of the other. (7) The grant of a non-voluntary license in the field of semi-conductor technology shall be authorised for public non-commercial purposes only, or to remedy the consequences of any unfair competition practices. The grant of non-voluntary licenses in the cases provided for in this Article, shall be in accordance with the rules and procedures prescribed in the Regulations.