What's the difference between invention patent transfer and utility model patent transfer?

There are three types of patents, and the three types of patents are different, which leads to different patent transfer processes. What's the difference between invention patent transfer and utility model patent transfer? The transfer of invention patents and utility model patents must first understand the differences between invention patents and utility model patents, so we must first understand the differences between invention patents and utility model patents. 1. Different invention patents refer to new technical solutions proposed for products, methods or their improvements. A patent for utility model refers to a new technical scheme for the shape, structure or combination of products, which is suitable for practical use. 2. The patent application process is different. In the process of applying for an invention patent, it is necessary to pass the substantive examination, which is more strict. The application for utility model patent only needs formal examination, not substantive examination, so utility model patent is easier to obtain than invention patent. 3. Different patent stability Because the invention patent has passed the substantive examination, its stability is the most stable among the three patents, and it is not easy to be invalidated by the patent. The utility model patent is not examined in substance, and even if it is granted, the patent right is relatively unstable. 4. The patent time is different. The protection period of an invention patent is 20 years. The protection time of utility model patent is 10 year. Due to the different patent protection time and the above three different reasons, the prices of invention patents and utility model patents are often about 10 times higher than those of utility model patents.