Article Detail Who invented Electron ? Answer: Thomson. J of Britain in 1897 Similar Questions : 1. Who invented Chloroform as anaesthetic ? Answer: James Simpson of Britain in 1847. 2. Who invented Java Language ? Answer: James Gosling 3. Who invented Vaccine of Rabies ? Answer: Louis Pasteur of France in 1885 4. Who invented Laser ? Answer: Charles H. Townes 5. Who invented Helicopter ? Answer: Igor Sikorsky 6. Who invented Neutron ? Answer: JAMES CHADWICK in 1932 7. Who invented Stainless Steel ? Answer: Harry Brearley of Britain in 1913. Read more from - Important Inventions