how did the patent system encourage inventiveness? responses it guaranteed inventors a fee if they successfully applied and were granted a patent. it guaranteed inventors a fee if they successfully applied and were granted a patent. it advertised an invention so that the inventor could sell more products faster. it advertised an invention so that the inventor could sell more products faster. it guaranteed an inventor sole rights to the use of his or her invention for a limited time. it guaranteed an inventor sole rights to the use of his or her invention for a limited time. it ensured that inventors could locate manufacturers to produce their inventions.