How does the patentee give up the patent right?

After the patent right is granted, the patentee may voluntarily request to give up the patent right at any time. Where the patentee waives the patent right, it shall submit a patent waiver statement at the time of submission, with supporting materials signed or sealed by all patentees agreeing to waive the patent right, or only submit a patent waiver statement signed or sealed by all patentees. Where a patent agency is entrusted, the procedures for giving up the patent right shall be handled by the patent agency, with a statement signed or sealed by all applicants agreeing to give up the patent right. No conditions may be attached to the declaration of voluntary waiver of patent right. Abandoning the patent right can only give up all of a patent, and the statement of giving up part of the patent right is regarded as not being put forward. If, after examination, the waiver of the patent right does not meet the requirements, the examiner shall issue a notice as not submitted; In accordance with the provisions, the examiner shall issue a notice of passing the formalities and register and announce the relevant matters in the patent register and patent announcement respectively. The effective date of patent waiver is the date of issuance of the notice of conformity. The patentee shall not request to cancel the declaration of abandoning the patent right without justifiable reasons. Unless the untrue owner of the patent maliciously requests to give up the patent right, the true owner of the patent right (should provide valid legal documents to prove it) may request to cancel the declaration of giving up the patent right. The declaration of waiver of patent right involving the first paragraph of Article 13 of the Detailed Rules for the Implementation of the Patent Law shall be made from the date of filing. After receiving the waiver of the patent right, the Patent Office shall register and announce it, and the effective date of the waiver of the patent right shall be the application date of the abandoned patent. After reading the above, you should know what the rights of the patentee are. Generally speaking, the patent right should be granted from the date of application, not from the date of grant. Every year after that, the patentee actually has to pay a certain annual fee.