1. Claim: The claim is one of the most important parts of the patent document, which defines the patentee's claim for his invention. The patent claim lists the technical scheme requested by the patentee, including the technical features and scope of the invention.
2. Description: The description is another important part of the patent document, which describes the technical content, implementation mode and advantages of the invention in detail. The specification also includes explanations and support for the claims to help Patent examiners understand and evaluate the patent application.