#[[FibroGen:Organization]] Arising Patent Rights. [[FibroGen:Organization]] will have the sole right, responsibility, and discretion to file, prosecute (including the defense of any oppositions, interferences, reissue proceedings, re-examinations, and other post-grant proceedings originating in a patent office), and maintain all [[FibroGen:Organization]] Arising Patent Rights and at its sole cost and expense.

Joint Arising Patent Rights. [[FibroGen:Organization]] will have the first right, responsibility, and discretion to file, prosecute (including the defense of any oppositions, interferences, reissue proceedings, re-examinations, and other post-grant proceedings originating in a patent office), and maintain all Joint Arising Patent Rights, in the Territory using counsel mutually agreed by the Parties (such agreement not to be unreasonably withheld by either Party), which may ​. The Parties will use good faith efforts to agree on a mutually acceptable strategy and will coordinate with each other for the prosecution and maintenance of all Joint Arising Patent Rights. If [[FibroGen:Organization]] decides it is no longer interested in the prosecution or maintenance of a particular Joint Arising Patent Right in any country the Territory, or ​, then it will promptly provide written notice to HFB of such decision. HFB may, upon written notice to [[FibroGen:Organization]], assume the prosecution and maintenance of such Patent Rights in such country in the Territory.