If not, contact the inventor and find him a manufacturer. If no manufacturer is interested in this invention. Then if you have money, you can invest it yourself. Yongkang has so many hardware factories. Find a good connection, produce. At that time, you will be the national general manager. The patent still belongs to the inventor. If you don't have much money, it's recommended to buy it out directly if you are optimistic about the prospects, and then the patent will be yours.