The value of road sewing machine patent depends on many factors. First of all, how big is the market demand for road sewing machines? If there is a high demand in the market and there is no similar or competitive technology, then the patent of road sewing machine may be of high value.
Secondly, the scope of patent coverage will also affect its value. If patents can protect the core technology and innovation of sewing machines and avoid others' plagiarism or competition of similar products, then patents have higher value.
In addition, the validity of the patent right is also one of the factors to consider the value. The patent right usually has a certain period of validity, during which the obligee can enjoy the commercial benefits of the technology exclusively. If the patented technology still has a high market demand within the validity period, then the value of the patent will be higher.
To sum up, the value of road sewing machine patent depends on market demand, patent coverage and patent validity. If you have the innovative technology of road sewing machine and think it has a broad market prospect, then applying for a patent may bring you commercial benefits.