The scope of the request for invalidation shall be clearly defined in the request for invalidation. If it is unclear, the Patent Reexamination Board shall notify the claimant to make corrections within a specified time limit. If no correction is made at the expiration of the time limit, the request for invalidation shall be deemed not to have been made.
The reasons for invalidation are limited to those specified in the second paragraph of Article 65 of the Detailed Rules for the Implementation of the Patent Law, and should be put forward as independent reasons based on the relevant clauses, paragraphs and items of the Patent Law and its Detailed Rules for the Implementation. If the reasons for invalidation do not belong to the reasons stipulated in the second paragraph of Article 65 of the Detailed Rules for the Implementation of the Patent Law, it shall not be accepted.
2. Evidence:
The claimant shall explain the reasons for the invalidation, and if evidence is submitted, it shall be explained in combination with all the evidence submitted. Where a patent for invention or utility model requires comparison of technical schemes, the patent involved and related technical schemes shall be specifically described in the comparison document, and comparative analysis shall be made; Where it is necessary to compare the design patents, the product design represented by the patents involved and the relevant pictures or photographs in the comparison documents shall be described and compared in detail. For example, if the claimant submits multiple comparison documents for the reason of invalidation as stipulated in the third paragraph of Article 22 of the Patent Law, it shall indicate the comparison document closest to the patent requesting invalidation, and the comparison method used alone or in combination, specifically describe the technical scheme and comparison documents of the patent involved, and make a comparative analysis. There are two or more combinations, and the specific combination should be made clear. For different independent claims, the closest comparison documents can be indicated respectively.
3. Request fee for invalidation:
Invention 3000, utility model or design 1500.