Ioannis Dimoulitsas (or Patatoukos) was the first manufacturer and teacher of fire ships in the Greek Revolution of 1821.
He was born im Parga and moved to Psara. In France he took explosion lessons by an officer of the engineer, Richie. In Psara he was admired for his knowledge and considered him wise .
In May of 1821 , the Greek captains could not approach the large two deck Turkish frigate in the bay of Eresos, so Patatoukos made the the firebomb ship that Demetrius Papanikolis used
to destroy this Large ship which was called as "the moving mountain"