Article Detail Who invented Steam Engine (Piston) Answer: Thomas Newcomen of Britain in 1712 Similar Questions : 1. Who invented Ball-Point Pen ? Answer: John J. Loud of U.S.A. in 1888 2. Who invented Periodic table ? Answer: Dmitri Mendeleev invented Periodic Table 3. Who invented Automatic rifle ? Answer: John Browning of U.S.A. in 1918. 4. Who invented Computer ? Answer: Charles Babbage 5. Who invented Steam Engine (Condenser) Answer: James Watt of Britain in 1765 6. Who invented Bleaching Powder ? Answer: Tennant of Britain in 1798 7. Who invented Neutron ? Answer: JAMES CHADWICK in 1932 Read more from - Important Inventions