Whether a method of genetically modified corn can be patented depends on whether there are similar or similar patent applications for this application. If there is an existing patent or a similar patent, it is impossible to grant it.
Patents are generally documents issued by government agencies or regional organizations representing several countries according to their applications. This kind of document records the contents of the invention and creation, and in a certain period of time, it has produced such a legal state that the patented invention and creation can only be implemented by others with the permission of the patentee.