Answer: B, C, D
Article 41 of the "Patent Law" stipulates that if a patent applicant is dissatisfied with the decision of the patent administration department of the State Council to reject the application, he or she may receive a notice Request a reexamination to the Patent Administration Department of the State Council within three months from the date of the application. After review, the patent administration department of the State Council will make a decision and notify the patent applicant. If a patent applicant is dissatisfied with the reexamination decision of the Patent Administration Department of the State Council, he may file a lawsuit with the People's Court within three months from the date of receipt of the notice. According to this, A is wrong and B and C are correct. Article 64, paragraph 1, of the Implementing Rules of the Patent Law stipulates that the reexamination requester may withdraw his reexamination request before the Patent Reexamination Board makes a decision. Option D complies with legal requirements and is correct.