Widely revered as one of greatest inventers in America, Charles F. Kettering was an electrical engineer and an industrial pioneer. He was the vice president of General Motors Research Corporation, a position which he held for a continuous 27 years. He held 186 patents, which includes the electrical starting motor and leaded gasoline. His inventions are known to have made tremendous contribution to the development of the modern day automobile industry. Some of his inventions were also employed in the fields of aviation technologies, medical research and diesel locomotives. Kettering also spent a major chunk of his life as a devoted social philosopher, farmer and a school teacher. He also invented the Freon refrigerant, which is used for the purpose of refrigeration and air-conditioning. He developed the first aerial missile in the world, ‘Bug’, which laid the foundation for future inventions of guided missiles and the like. He made innumerable contributions to National Cash Register, where he invented the first electric cash register and accounting machines. He suffered from eye problems during his school and college days, which affected his initial education.