First of all, the standards of creativity are different:
The creative standard of utility model is lower than that of invention. The utility model is limited to products with a certain shape, and cannot be a method or product without a fixed shape;
Second, the fields of existing technologies are different: for an invention, we should not only consider the technical field to which it belongs, but also consider its similar, similar or related technical fields, as well as other technical fields in which the technical problems to be solved by the invention can prompt technicians in this field to find technical means.
For utility models, it is generally important to consider the technical field to which the utility model belongs, and at the same time consider its similar, similar or related technical fields.
Patent for utility model: refers to a new technical scheme suitable for practical use for the shape, structure or combination of products. The structure, shape or combination of structure and shape of any product shall apply for a patent for utility model. The protection period is 10 year.
Invention patent: Inventions and creations that can be protected by China's patent law include inventions, utility models and designs, and its significance lies in protecting inventors and improving their enthusiasm.