Can you sell a provisional patent?

A provisional patent can be sold just like a non-provisional patent application or issued patent. As others have responded, the procedure is to execute an assignment document and record that document with the Assignment Branch of the USPTO. Please be aware, however, that you may have some difficulty finding a buyer for a provisional patent application , or commanding a reasonable price. A provisional patent application is a placeholder application. It does not mature into an issued patent unless a non-provisional patent application is later filed, and that non-provisional patent application is eventually granted. So there is a long road to an actual patent right, upon which you may run into obstacles. The uncertainty created by this will likely depress your value.