Tenn. Code Ann. § 47-25-1209: Acquiring interest in invention by developer

No invention developer shall acquire any interest, partial or whole, in the title to the customer's invention, unless the invention developer contracts to manufacture the invention and acquires such interest for such purpose at or about the time the contract for manufacture is executed. Nothing in this section shall be construed to prohibit an invention developer from contracting with a customer to receive a portion of any proceeds accruing to the customer as a result of performance of invention development services by the invention developer.