The State Intellectual Property Office will review and decide whether to register the patent right pledge within 7 working days from the date of receipt of the patent pledge registration application documents; if the pledge application documents submitted by the party are defective, the review and approval time limit shall be from the date of the party The calculation starts from the date when all defects are overcome; regardless of whether it is registered or not, the Patent Office will notify the party concerned of the examination results in the form of a "Notice".