Intellectual property rights must be acquired at the stage of R & D and product planning, without guarantee that the invention will be used in the future. It is difficult to decide about this investment. From the viewpoint of effectively utilizing capital, it is preferable to monetize a patent that has not been finally commercialized, by assigning or licensing it. In practice, however, it tends to be handled by abandonment or keep on holding. As a result, the number of unused patents owned by companies continues to increase. On the other hand, sharing services via the Internet have become widespread in recent years. Various assets such as houses, and cars are not owned but utilized by sharing, and items that are no longer needed are transferred to those who need it. In other words, if a patent that is not in use is also transferred to the person who needs it, it will show new value. Therefore, it is the significance of this research to analyze the transferred patents, to know what type and characteristic rights are transferred, and to use it for reuse of unused patents.