20th-century American inventors

John Peter Costas (1923 in Wabash, Indiana – August 9, 2008) was an American electrical engineer. Costas invented, among other things, the Costas loop and Costas arrays.

Lawrence Joseph Giacoletto (November 14, 1916, in Clinton, Indiana – October 4, 2004, in Okemos, Michigan) was an American electrical engineer and inventor. He was known among others for his work in the field of semiconductor circuit technology, in particular by the eponymous Giacoletto equivalent circuit for transistors (also known as Hybrid-pi model).

Robert William Kearns (March 10, 1927 – February 9, 2005) was an American mechanical engineer, educator and inventor who invented the most common intermittent windshield wiper systems used on most automobiles from 1969 to the present. His first patent for the invention was filed on December 1, 1964, after a few previous designs by other inventors had failed to gain any traction in manufacturing.
Kearns won one of the best known patent infringement cases against Ford Motor Company (1978–1990) and a case against Chrysler Corporation (1982–1992). Having invented and patented the intermittent windshield wiper mechanism, which was useful in light rain or mist, he tried to interest the "Big Three" auto makers (General Motors, Ford, and Chrysler) in licensing the technology. Each rejected his proposal, yet began to install electronic intermittent wipers based on Kearns's design in their cars, beginning in 1969, when Ford rolled out the feature to its Mercury line.
Kearns's legal battle against Ford to protect his invention and patent was the subject of a 1993 article in The New Yorker magazine, which became the basis for a full-length biographical feature film titled Flash of Genius in 2008. Kearns was played by actor Greg Kinnear. Kearns had six children with his wife Phyllis, although they separated, supposedly as a result of the stress from the legal battle. He died of brain cancer at the age of 77.

Ermal Cleon "Ernie" Fraze (September 16, 1913 – October 26, 1989) was an American engineer who invented the pull-tab opener used in beverage cans.

George Edward Alcorn Jr. (born March 22, 1940) is an American physicist, engineer, inventor, and professor. He taught at Howard University and the University of the District of Columbia, and worked primarily for IBM and NASA. He has over 30 inventions and 8 patents resulting in his induction into the National Inventors Hall of Fame in 2015.

Bette Nesmith Graham (March 23, 1924 – May 12, 1980) was an American typist, commercial artist, and the inventor of the correction fluid Liquid Paper. She was the mother of musician and producer Michael Nesmith of The Monkees.

Alex Golden Oblad (November 26, 1909 – September 19, 2000) was a prominent chemist and chemical engineer principally recognized for his pioneering work in catalysis and catalytic chemistry.

James Robert Cade (September 26, 1927 – November 27, 2007) was an American physician, university professor, research scientist and inventor. Cade, a native of Texas, earned his bachelor and medical degrees at the University of Texas, and became a professor of medicine and nephrology at the University of Florida. Although Cade engaged in many areas of medical research, he is most widely remembered as the leader of the research team that created the sports drink Gatorade. Gatorade would have significant medical applications for treating dehydration in patients, and has generated over $150 million in royalties for the university.
In his later years, Cade became a prominent philanthropist, donating significant sums to charities affiliated with the Lutheran Church, creating scholarships and donating freely to the University of Florida and other colleges and universities, and endowing his own charitable foundations.

Alden Partridge Colvocoresses (September 23, 1918 – March 27, 2007) helped to develop the Space-oblique Mercator projection with John P. Snyder and John Junkins, and developed the first satellite map of the United States in 1974.

Arthur Middleton Young (November 3, 1905 – May 30, 1995) was an American inventor, helicopter pioneer, armchair philosopher, astrologer, and author. Young was the designer of Bell Helicopter's first helicopter, the Model 30, and inventor of the stabilizer bar used on many of Bell's early helicopter designs. He founded the "Institute for the Study of Consciousness" in Berkeley in 1972. Young advocated process philosophy, an attempt to integrate the realm of human thought and experience with the realm of science so that the concept of universe is not limited to that which can be physically measured. Young's theory embraces evolution and the concept of the great chain of being. He has influenced such thinkers as Stanislav Grof and Laban Coblentz.