The main purpose of the present inquiry is to determine whether second thoughts support or undermine the instinctive supposition that the doctrines surrounding cooperative use of patents should be federal. The original creator of a patented invention is seldom in a position to exploit its commercial potential alone; even if the invention is created by the employee of a vast enterprise, it is almost inevitable that the patent will be assigned to his employer. Patent licensing plays a vitally important role in the development of many inventions. The contract doctrines surrounding such transactions, and various other consensual undertakings relating to patents, can obviously affect the value of the patent in significant ways. Unduly restrictiv...