Abstract: The property right of patent is realized mainly through market activities by companies that
own patents. The facts that companies have become major owners of patents and the increase in
information cost greatly impact the value of patent. Therefore the value of patent should be
determined taking into consideration of three elements, namely patent, technology and company;
whereas the patent value is determined by the input and risks undertaken in the process of
industrialization of patent products. Value-oriented patent operation helps to attract investment to
innovation by society, and should be encouraged. However, legal protection of patent owner’s
interest should be based on reasonable determination of patent value. While protecting patent right,
it is also important to prevent the abuse of it.