Schlafly (1919–2011), U.S. – Teleprompter = Autocue Wilhelm Schlenk (1879–1943), Germany – Schlenk flask (chemistry) Bernhard Schmidt (1879–1935), Estonia/Germany – Schmidt camera Friedrich Schmiedl (1902–1994), Austria – rocket mail Otto Schmitt (1913–1998), U.S. – Schmitt trigger (electronics) Christian Schnabel (1878–1936), German – simplistic food cutleries Kees A. Schouhamer Immink (born 1946), Netherlands – Major contributor to development of Compact Disc August Schrader (1807–1894), U.S. – Schrader valve for Pneumatic tire David Schwarz (1852–1897), Croatia, – rigid airship, later called Zeppelin Raymond Scott (1908–1994), U.S. – inventor and developer of electronic music technology Girolamo Segato (1792–1836), Italy – artificial petrifaction of human cadavers Marc Seguin (1786–1875), France – wire-cable suspension bridge Hanaoka Seishū (1760–1835), Japan – General anaesthetic Ted Selker (inv. 1987), U.S. – Pointing stick Sennacherib (705–681 BC), Iraq (Mesopotamia) – screw pump Léon Serpollet (1858–1907), France – Flash boiler, Gardner-Serpollet steam car Iwan Serrurier (1878–1953), Netherlands/U.S. – inventor of the Moviola for film editing Mark Serrurier (1904–1988), U.S. – Serrurier truss for Optical telescopes Gerhard Sessler (born 1931), Germany – foil electret microphone, silicon microphone Guy Severin (1926–2008), Russia – extra-vehicular activity supporting system Ed Seymour (inv. c. 1949), U.S. – Aerosol paint Leonty Shamshurenkov (1687–1758), Russia – first self-propelling carriage (a precursor to both bicycle and automobile), projects of an original odometer and self-propelling sledge Ibn al-Shatir (1304–1375), Syria – "jewel box" device which combined a compass with a universal sundial Bi Sheng () (c. 990–1051), China – clay movable type printing Patsy O’Connell Sherman (1930–2008), U.S. – Scotchgard Murasaki Shikibu (c. 973–1025), Japan – psychological novel Pyotr Shilovsky (1871–1957), Russia/UK – gyrocar Masatoshi Shima (born 1943), Japan – microprocessor Fathullah Shirazi (c. 1582), Mughal India – early volley gun Joseph Shivers (1920–2014), U.S. – Spandex William Bradford Shockley (1910–1989), U.S. – co-inventor of transistor Henry Shrapnel (1761–1842), UK – Shrapnel shell ammunition Vladimir Shukhov (1853–1939), Russia – thermal cracking (Shukhov cracking process), thin-shell structure, tensile structure, hyperboloid structure, gridshell, oil pipeline, cylindric oil depot Sheikh Muszaphar Shukor (born 1972), Malaysia – cell growth in outer space, crystallization of proteins and microbes in space Augustus Siebe (1788–1872), Germany/UK – Inventor of the standard diving dress Sir William Siemens (1823–1883), Germany – regenerative furnace Werner von Siemens (1816–1892), Germany – electric elevator, Electromote (= first trolleybus), an early Dynamo Al-Sijzi (c. 945–1020), Persia/Iran – heliocentric astrolabe Igor Sikorsky (1889–1972), Russia/U.S. – first four-engine fixed-wing aircraft (Russky Vityaz), first airliner