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John J. Taylor
John J. Taylor (1922–2013) was an American nuclear engineer who designed radiation shields for the first nuclear submarine, USS Nautilus, and led EPRI's nuclear power division.
John J. Vithayathil
John Joseph Vithayathil (1937–2011) was an Indian-American electric power engineer who invented the thyristor-controlled series capacitor and was elected to the National Academy of Engineering in 2000.
John Joseph Carty
John Joseph Carty (1861–1932) was an American electrical engineer who rose from telephone operator to Vice President of AT&T, led the first transcontinental telephone line in 1915, and chaired Bell Telephone Laboratories.
John Joseph Koszewnik
John Joseph Koszewnik is an American mechanical and powertrain engineer, retired chief technical officer of Achates Power, elected to the National Academy of Engineering in 2016 for engine design.
John Joseph Paserba Jr.
John Joseph Paserba Jr. is an American electric power engineer and president and CEO of Southern States, LLC, elected to the National Academy of Engineering in 2025.
John Kay (flying shuttle)
John Kay of Bury (1704–c. 1779) was an English inventor and reed-maker who patented the flying shuttle in 1733, letting one weaver weave broad cloth faster and wider.
John L. Anderson
John L. Anderson is an American chemical engineer known for research on colloidal hydrodynamics and membrane transport, and president of the National Academy of Engineering from 2019 to 2025.
John L. Bogdanoff
John L. Bogdanoff (1916–2003) was an American mechanical engineer at Purdue University who pioneered stochastic processes in engineering analysis and joined the National Academy of Engineering in 1975.
John L. Cleasby
John L. (Jack) Cleasby was an American environmental engineer at Iowa State University, a leading authority on granular filtration of drinking water, elected to the National Academy of Engineering in 1983.
John L. Gidley
John L. Gidley (1924–2009) was an American petroleum engineer at Exxon, elected to the National Academy of Engineering in 1994 for advances in well stimulation.
John L. Hennessy
John L. Hennessy, also known as John Leroy Hennessy, is an American computer scientist who was Stanford University's 10th president from 2000 to 2016 and won the 2017 Turing Award.
John L. Lewis
John L. Lewis, born John Llewellyn Lewis, was an American labor leader who led the United Mine Workers from 1920 to 1960 and founded the CIO.
John L. Lumley
John L. Lumley (1930–2015) was an American fluid dynamicist, Willis H. Carrier Professor at Cornell University, who pioneered proper orthogonal decomposition of turbulent flows and coauthored A First Course in Turbulence.
John L. Manferdelli
John L. Manferdelli is a mathematician and cryptographer who led security development at Microsoft, Intel, Google, and VMware, elected to the National Academy of Engineering in 2025.
John L. Moll
John L. Moll (John Lewis Moll, 1921–2011) was an American electrical engineer known for the Ebers-Moll transistor model and the p-n-p-n switch theory behind the silicon controlled rectifier.
John L. Savage
John L. Savage was an American civil engineer who, as chief designing engineer of the US Bureau of Reclamation, supervised designs of Hoover and Grand Coulee Dams.
John Legere
John Legere is an American telecommunications executive who served as president and CEO of T-Mobile US from 2012 until 2020, known for the "Un-carrier" strategy that eliminated service contracts and overage fees.
John Lloyd Wright
John Lloyd Wright (John Kenneth Wright, 1892–1972) was an American architect, the second son of Frank Lloyd Wright, best known as the inventor of Lincoln Logs, patented in 1920.
John Logie Baird
John Logie Baird was a Scottish inventor who gave the first public demonstration of television in London in 1926 and later showed the first mechanical color television.
John Lowe III
John Lowe III (1916–2012) was an American geotechnical engineer who worked on more than 45 dams and was elected to the National Academy of Engineering in 1974.
John M. Googin
John M. Googin (1922–1994) was an American physical chemist at the Y-12 Plant in Oak Ridge who developed isotope-separation processes and won the 1967 Lawrence Award.
John M. Gregoire
John M. Gregoire is an American materials scientist, Research Professor at Caltech since 2021, who uses high-throughput, combinatorial, and AI-driven methods to discover energy materials.
John M. Hedgepeth
John M. Hedgepeth is an aerospace structures engineer who was a main architect of NASA's large space structures research in the 1970s and 1980s, known for back-of-the-envelope design methods.
John M. Kulicki
John M. Kulicki is an American bridge engineer who led development of the AASHTO LRFD Bridge Design Specifications and was elected to the National Academy of Engineering in 2006.
John M. Prausnitz
John M. Prausnitz (J. M. Prausnitz), born 1928 in Berlin, is an American chemical engineer at UC Berkeley known as the originator of molecular thermodynamics.
John M. Torkelson
John M. Torkelson is an American polymer scientist, a Walter P. Murphy Professor at Northwestern University since 1983, known for polymer glass-transition confinement research and recyclable thermosets.
John M. Undrill
John M. Undrill is an American electric power systems engineer, architect of the PSS/E and developer of the PSLF simulation software that became industry standards for grid planning.
John M. West
John M. West (1920–2004) was an American nuclear engineer and Manhattan Project veteran who led Combustion Engineering's nuclear division and pioneered the boiling-water reactor program.
John Maeda
John Maeda, born 1966 in Seattle, is an American computer scientist, artist, and design executive known for Design by Numbers, his MIT Media Lab work, and STEM-to-STEAM advocacy.
John Mauchly
John William Mauchly was an American physicist who co-invented ENIAC and UNIVAC I with J. Presper Eckert after working at the University of Pennsylvania from 1941 to 1946.