(1501–1576), Italy – Cardan grille (cryptography) Philip Cardew (1851–1910), UK – Hot-wire galvanometer Chester Carlson (1906–1968), U.S. – Xerographic copier Wallace Carothers (1896–1937), U.S. – Nylon and Neoprene (together with Arnold Collins) Antonio Benedetto Carpano (1764–1815), Italy – Vermouth Giovanni Caselli (1815–1891), Italy/France – Pantelegraph George Cayley (1773–1857), UK – tension-spoke wheels Anders Celsius (1701–1744), Sweden – Celsius temperature scale Vint Cerf (born 1943), together with Bob Kahn (1938–), U.S. – Internet Protocol (IP) Ugo Cerletti (1877–1963), together with Lucio Bini (1908–1964), Italy – Electroconvulsive therapy Charles Chamberland (1851–1908), France – Chamberland filter Min Chueh Chang (1908–1991), together with Gregory Goodwin Pincus (1903–1967), U.S./China – Combined oral contraceptive pill Thomas Chang (born 1933), Canada/China – Artificial cell Emmett Chapman (1936–2021), U.S. – Chapman Stick Claude Chappe (1763–1805), France – Semaphore line David Chaum (born 1955), U.S. – Digital signatures, ecash Vladimir Chelomey (1914–1984), USSR – First space station (Salyut) Pavel Cherenkov (1904–1990), USSR – Cherenkov detector Evgeniy Chertovsky (1902-?), Russia – pressure suit Alicia Chong Rodriguez - American engineer and inventor Ward Christensen (born 1945), U.S. – Bulletin board system Ole Kirk Christiansen (1891–1958), Denmark – Creator of Lego Samuel Hunter Christie (1784–1865), UK – Wheatstone bridge Juan de la Cierva (1895–1936), Spain – the autogyro Charles Clagget (1740–1795), UK – Improvements for musical instruments Leland Clark (1918–2005), U.S. – Clark electrode (medicine) Georges Claude (1870–1960), France – neon lamp Henri Marie Coandă (1886–1972), Romania – Coandă effect Josephine Cochrane (1839–1913), U.S. – dishwasher Christopher Cockerell (1910–1999), UK – Hovercraft Aeneas Coffey (1780–1852), Ireland – Coffey still Sir Henry Cole (1808–1882), UK – Christmas card Samuel Colt (1814–1862), U.S. – Revolver development Sir William Congreve (1772–1828), UK – Congreve rocket George Constantinescu (1881–1965), Romania – creator of the theory of sonics, a new branch of continuum mechanics Albert Coons (1912–1978), U.S. – Immunofluorescence (microscopy) Martin Cooper (born 1928), U.S. – Mobile phone Harry Coover (1917–2011), U.S. – Super Glue Lloyd Groff Copeman (1865–1956), U.S. – Electric stove Cornelis Corneliszoon (1550–1607), The Netherlands – wind powered sawmill Alexander Coucoulas (born 1933), U.S. – Thermosonic bonding Wallace H. Coulter (1913–1998), U.S. – Coulter principle Jacques Cousteau (1910–1997), France – co-inventor of the aqualung and the Nikonos underwater camera John "Jack" Higson Cover Jr. (1920–2009), U.S. – Taser William Crookes (1832–1919), UK – Crookes radiometer, Crookes tube Bartolomeo Cristofori (1655–1731), Italy – piano Caresse Crosby (1891–1970), U.S. - Modern bra S. Scott Crump