In a sale of any subject matter subject to intellectual property rights, the intellectual property rights in the subject matter does not belong to the buyer, except as otherwise provided by the law or agreed by the parties. 出卖具有知识产权的标的物的，除法律另有规定或者当事人另有约定外，该标的物的知识产权不属于买受人。 The seller shall deliver the subject matter at the time agreed upon. Where a period for delivery is agreed upon, the seller may deliver at any time within the period. 出卖人应当按照约定的时间交付标的物。约定交付期限的，出卖人可以在该交付期限内的任何时间交付。 Where a seller fails to acquire the right to dispose, rendering the transfer of ownership of the subject matter impossible, the buyer may rescind the contract, and claim liability of the seller for breach of contract. 因出卖人未取得处分权致使标的物所有权不能转移的，买受人可以解除合同并请求出卖人承担违约责任。