What are the provisions for applying for a patent for the preservation of biological materials?

Among them, patent applications involve biological materials (such as plasmids, bacteria, fungi, algae, animal and plant cell lines, etc.). ) If it has never been made public before, the preservation and survival certificate of biological materials issued by its accreditation unit shall be submitted to China National Intellectual Property Administration at the same time as the patent application or within four months from the date of application. Biological materials that do not need to be preserved: biological materials that can be obtained by the public at home and abroad through commercial channels; Biological materials preserved by the preservation institutions designated by the patent offices of various countries or international patent organizations for patent formalities have been published or authorized in the patent announcement before the priority date or filing date of the patent application submitted to China, and no preservation is required. Biological materials to be preserved: biological materials held by individuals or units, kept in institutions that are not used for patent procedures, not released to the public, or unavailable to the public before the filing date (priority date), such as newly created biological materials by means of screening, mutation, recombinant DNA, etc. , all need to be kept.