This topic mainly investigates patent infringement. Article 12 of the Patent Law stipulates that any unit or individual who exploits another person's patent shall conclude an exploitation license contract with the patentee and pay the patentee the royalties. The licensee has no right to allow any unit or individual outside the contract to exploit the patent, so item A is wrong.
Article 56 of the Patent Law stipulates that the unit or individual that has obtained the compulsory license for exploitation does not enjoy the exclusive exploitation right and has no right to allow others to exploit it, so item B is wrong.
Article 60 of the Patent Law stipulates that the exploitation of a patent without the permission of the patentee is an act of infringement of his patent right. Article 70 of the law stipulates that anyone who uses, promises to sell or sells an infringing patented product for the purpose of production and operation without knowing that it was manufactured and sold without the permission of the patentee shall not be liable for compensation if he can prove the legal source of the product. The case of item C, that is, bona fide infringement, belongs to infringement in nature and should bear the responsibility to stop the infringement, but not to pay compensation, so item C is wrong.
Paragraph 5 of Article 69 of the Patent Law stipulates that the manufacture, use and import of patented drugs or patented medical devices, as well as the manufacture and import of patented drugs or patented medical devices for their exclusive use, for the purpose of providing information required for administrative examination and approval shall not be regarded as infringement of patent rights, so paragraph d is correct.