How long will the patent be invalid?

Legal analysis: 1. The time limit for filing a request for invalidation shall be any time from the date of announcement of the patent right. 2. The invalid claimant shall, within 0 months from the date of filing the request for invalidation, supplement the reasons, submit new evidence and pay the request fee for invalidation. Otherwise it can be ignored. 3. The power of attorney in the invalidation procedure is not in conformity with the provisions, and the correction period is within 7 days.

Legal basis: Article 46 of the Patent Law of People's Republic of China (PRC).

The Patent Reexamination Board shall promptly examine the request for invalidation of the patent right and make a decision, and notify the claimant and the patentee. The decision to declare the patent right invalid shall be registered and announced by the patent administration department of the State Council. Anyone who refuses to accept the decision of the Patent Reexamination Board to declare the patent right invalid or maintain the patent right may bring a lawsuit to the people's court within three months from the date of receiving the notice. The people's court shall notify the other party to the procedure for requesting invalidation to participate in the proceedings as a third party.