USPTO releases Apple's patent application covering the selling and borrowing of digital content
record label or movie studio, would set some of the criteria of the transfer. For example, a certain eBook might be restricted to a sale price of no less than $5 with no re-sales allowed for at least 6 months, The restrictions that the original content owner can set include the price, the number of times the content can be transferred and to whom the transfer is made.
The patent also states that the original content holder could end up getting paid from subsequent transfers, unlike the second hand market that Amazon envisions. Considering that you have both Apple and Amazon working on the legalities involved in DRM transfers, this looks like something that will build up momentum in the near future.
Apple divided its application, titled, "Managing access to digital content items," in three parts with two parts filed in September 2011 and one filed in June 2012. As an example of how Apple's plan works, let's assume that a buyer of an eBook wishes to sell his rights to the content. He can contact the iBookstore and let them know that he is selling. Once certain criteria is met, the rights are transferred to the new owner and the first owner would no longer have the ability to access the sold content. The content itself could be on a device or be cloud based, and the original content provider and the store could receive part of the proceeds.
source: USPTO via AppleInsider