2. The patent claim is an independent document, which shall be written separately from the specification and in separate pages.
3. The technical terms and terms used in the claims shall be consistent with those in the specification. Claims may contain chemical formulas and numbers, but not illustrations. Instructions and drawings shall not be quoted unless absolutely necessary.
4. The patent claim shall specify the technical features of the invention or utility model and clearly and concisely state the scope of the requested protection. Technical features can refer to the corresponding reference numerals in the attached drawings of the specification.
5. There are two kinds of claims: a claim that reflects the technical scheme of the invention or utility model as a whole and records the technical characteristics necessary to realize the purpose of the invention is called an independent claim; Claims that refer to independent claims or other claims and are further defined by additional technical features are called dependent claims.
Usually, a patent application has only one independent claim. Each independent claim can have several dependent claims. Where there are multiple claims, they shall be numbered in Arabic numerals.