Equivalent substitution, intellectual property terms. It refers to the act of realizing basically the same function or achieving basically the same effect with patented technology by basically the same means as patented technology. It is a substitute that ordinary technicians in this field can think of without creative labor, or an equivalent that can be found without special consideration. This kind of equivalent substitution is generally regarded as infringement in patent trial practice. As long as the replaced technical features are not creative, they are regarded as equivalent patent infringement.
In agricultural products, the mutual substitution of ground wheels and motors is equivalent substitution, which is well known to those skilled in the field and has obvious effects.