Legal analysis: A patent for utility model refers to a new practical technical scheme for the shape, structure or combination of products. Conditions for granting a patent for utility model: it must meet the requirements of novelty, creativity and practicality. First of all, novelty means that before the filing date, no identical invention was published in domestic and foreign publications, used in China or known to the public in other ways, and no identical invention was applied to the Patent Office by others and recorded in the patent application documents. Secondly, creativity means that the invention-creation has substantial characteristics and progress compared with the existing technology before the application date. Finally, practicality means that the invention can be made or used and can produce positive effects.
Legal basis: Article 31 of the Patent Law of People's Republic of China (PRC). An application for a patent for an invention or utility model shall be limited to one invention or utility model. Two or more inventions or utility models belonging to a general inventive concept may be filed as one application.
An application for a patent for design shall be limited to one design. Two or more similar designs of the same product, or two or more designs of products used in the same category and sold or used in sets, may be filed as one application.