NegaritGazeta - No. 25- lOth May 1995 -Page 224 24. Patentee's Course of Action Against Infringement The patentee shall, in addition to any other rights, reme­ dies or actions available to him, have the right subject to Articles 25, 26, 29 to 33 to institute court proceedings against any person who infringes the patent by performing, without his agreement, any of the acts referred to in Article 22 (1) or who performs acts which make it likely that infringement will occur. 25. Limitation of Rights 1. The rights of the patentee shall not extend to: a) acts done for non-commercial purposes; b) the use of the patented invention solely for the purposes of scientific research & experimentation; c) acts in respect of patented Articles which have .been.puc.ca ethe--IIllIl"ket-in-EtlW7pifi, -by -tfte-owneJ<" of the patent or wiJth his consent, or d) the use of patented vehicles or vessels of airel'aft, land Articles on other temporarily or accidentally countries enter which into the air space, territory,or waters of Ethiopia. 2. Where the public interest, in particular, national security, nutrition, health or the development of other vital sectors of the national economy so requires, the Commission may decide that, even without the agree­ ment of the patentee, a government agency or a third person designated by the Commission to exploit the invention subject to the payment of an equitable re­ muneration to the patentee. The decision of the Com­ mission with regard to the remuneration may be sub­ ject to appeal before the court. 26. Prior Users 1. Any person who in good faith, has been using the invention covered by an application for protection on or prior to the filing date or, where priority is claim ed, the priority date of the application, has a personal right to continue to use that invention despite the existence of the patent. 2. The right of prior users referred to in sub-article (1) herein above may be transferred only the enterprise or business, or with enterprise or business, in which the together with that part of the use or prepara­ tions for use have been made. 27. Duties of the Patentee 1. The patentee shall have the duties to work the patent­ ed invention or to authorize other same in Ethiopia. persons to do the