Whether the contribution fee at the time of marriage belongs to the joint property of husband and wife can be divided into the following situations:
 1. If the property income of intellectual property is clear before marriage, even if the income is actually obtained after marriage, the income is still personal property before marriage;
 2. If the property income of intellectual property is clear in the duration of the marriage relationship, the income is jointly owned by the husband and wife no matter whether it is actually obtained during the duration of the marriage relationship or after divorce;
 3. If the definite time of the property income of intellectual property is after divorce, the income is personal property.
 Article 17 of the Marriage Law stipulates that the following property acquired by the husband and wife during their marriage relationship shall be jointly owned by the husband and wife:
 （1） Salary and bonus;
 （2） Income from production and operation;
 （3） Income from intellectual property;
 （4） Property derived from inheritance or donation, except as provided for in Item 3 of Article 18 of this Law;
 （5） Other properties that should be jointly owned.
 Husband and wife have equal rights to dispose of jointly owned property.