Angelo Moriondo: Patented a steam-driven coffee beverage-making device and was often erroneously credited for inventing espresso
Luigi Bezzera: Patented the first espresso machine and later went on to create several improved versions
Desiderio Pavoni: Bought the patent titled "Innovations in the machinery to prepare and immediately serve coffee beverage" from Luigi Bezzera, founded the La Pavoni company, and began to produce the machine industrially