In the authorization procedure, inventions need to undergo preliminary examination and substantive examination before they can be authorized, while utility models and designs are authorized only after preliminary examination. Item A, anti-dandruff shampoo product belongs to the product innovation in the invention patent, which needs preliminary examination and substantive examination before authorization. Item B, Dishwasher with its own disinfection and sterilization system, belongs to a new technical scheme proposed for products, methods or their improvement, and should belong to the category of invention patents. Item C, a crescent-shaped car door handle design, is a new design with aesthetic feeling and suitable for industrial application, belonging to exterior design. A design can only be granted a patent right after a preliminary examination. Item D, the method invention of a new surfactant belongs to the method innovation in the invention patent, and can only be authorized after preliminary examination and substantive examination.