The difference between him and the invention patent is as follows:
1, utility model patents will only be examined in form, while invention patents will be examined in substance. This means that as long as your format meets the requirements of the patent, the utility model patent will give you this certificate, and your substantive content will not be reviewed, while the invention patent will review your substantive content and whether your technology has been applied by others before, and so on.
2. The protection period of utility model patent is 10 year, and the invention patent is 20 years.
3. The utility model patent only protects the structural products, while the invention patent not only protects the structural products, but also protects the process and formula.
The patent of building utility model can be the structure of building components, for example. The invention patent of architecture can be, for example, the formula of concrete, and of course it can also be the improvement of structure.