After the transfer of the patent right, is the transferor still the subject of the patent right?

After the patent right is transferred, the transferor is not the subject of the patent right. The subject of the patent right, that is, the related party of the patent right, refers to the person who enjoys the patent right and bears the corresponding obligations according to law. The concept of inventor in a broad sense refers to the inventor who directly completes the invention and creation. Narrow sense: a person who makes creative contributions to the substantive characteristics of invention and creation. A qualified inventor must be a person directly involved in the invention and creation activities. Inventors must occupy the core position in the whole invention and make creative contributions to the substantive characteristics of invention and creation. Inventors can only be natural persons, and there is no restriction on their abilities.