Article 31. Actions that are not Considered to be the Infringement of Rights
3. The introduction of a product that has been manufactured with the use of the patented invention (utility model) into the commercial circuit by any person, which has obtained a product without violation of the patent owner rights, shall not be considered to be the infringement of rights deriving from a patent. The product manufactured with the use of the patented invention (utility model) shall be considered to be obtained without the violation of the patent owner rights provided that this product has been manufactured by the patent owner and (or) after manufacturing has been introduced into the commercial circuit by the patent owner or other person according to the special permission (license) of the patent owner.