(A) the particularity of the transaction subject. The so-called particularity of the subject mainly refers to the fact that most intellectual property transactions have no right holders to participate. Many intellectual property transactions involve third parties. For example, performers involved in copyright, producers of records and organizers of radio and television may all become the subjects of intellectual property transactions. Trademarks and patents also involve third-party issues.

(2) The intangibility of the transaction object. The object of intellectual property is intangible, reproducible and transmissible, which can meet the needs of different people in different periods. For example, the problem of piracy: the reason lies in the infringer. When he commits a certain tort, it does not objectively prevent the obligee from exercising his rights normally. Different from tangible property, once infringed, the obligee can't exercise his rights immediately, which makes the transaction object of intellectual property itself completely different from tangible property.