1. The technical features of the invention or utility model shall be recorded.
2. Where there are multiple claims, they shall be numbered in Arabic numerals.
3. The technical terms used shall be consistent with the technical terms used in the manual, and there may be chemical formulas or mathematical formulas, but there shall be no illustrations.
4. For technical features, please refer to the corresponding marks in the attached drawings.
5. There should be independent claims or dependent claims.
Article 20 of the Detailed Rules for the Implementation of the Patent Law of People's Republic of China (PRC).
Claims shall have independent claims or dependent claims.
The independent claim shall reflect the technical scheme of the invention or utility model as a whole and record the necessary technical features to solve the technical problems.
The dependent claims shall further define the cited claims with additional technical features.