From the time point of view, the patent technology invention is valid for 20 years, the utility model is valid for 10 years, and the patent potential near the validity period is not great;
In terms of exclusivity, if the other party sells the product to you, the patent right of the product itself will be exhausted at one time. If the product is sold in China, the patent right will not be infringed, and there is no need to pay royalties.