* al-jazari, (12th century), mesopotamia — crankshaft
* archimedes, (c 287 bc-212 bc), greece — archimedes screw
* ami argand, (1750-1803), france — argand lamp
* edwin h. Armstrong,(1890-1954), usa — fm radio
* william george armstrong, (1810-1900), uk — hydraulic crane
* joseph aspdin, (1788-1855), england — portland cement
* john vincent atanasoff, (1903-1995), united states — modern programmable computer
* neil arnott, (1788-1874), uk — waterbed

* charles babbage, (1791-1871), uk — analytical engine
* roger bacon, (1214-1292), england — magnifying glass
* leo baekeland, (1863-1944), belgian–american — velox photographic paper and bakelite
* ralph h. Baer, (1922-), german born american — video game console
* john logie baird, (1888-1946), uk — an electromechanical television
* donat banki, (1859-1922), hungary — inventor of the carburetor
* john bardeen, (1908-1991), usa — co-inventor of the transistor
* anthony r. Barringer canadian – american — input (induced pulse transient) airborne electromagnetic system
* earl w. Bascom, (1906-1995), canada and united states — side-delivery rodeo chute, hornless rodeo saddle, rodeo bareback rigging, rodeo chaps
* eugen baumann, (1846-1896), germany — pvc
* trevor baylis, (1937-), uk — a wind-up radio
* francis beaufort, (1774-1857), france — beaufort scale
* arnold o. Beckman, (1900-2004), usa — ph meter
* alexander graham bell, (1847-1922), canada — telephone
* karl benz, (1844-1929), germany — the petrol-powered automobile
* emile berliner, (1851-1929), germany and usa — the disc record gramophone
* tim berners-lee, (1955-), uk — with robert cailliau, the world wide web
* bi sheng (chinese:畢昇, (ca.990-1052), china — clay movable type printing
* laszlo biro, (1899-1985), hungary — modern ballpoint pen
* j. Stuart blackton, (1875-1941), usa — stop-motion film
* otto blathy (1860-1939), hungary — co-inventor of the transformer, wattmeter, alternating current (ac) and turbogenerator
* katharine b. Blodgett, (1898-1979), uk — nonreflective glass
* nils bohlin, (1920-2002), sweden — the three-point seat belt
* joseph-armand bombardier, (1907-1964), canada — snowmobile
* robert w. Bower, (1936-), usa — self-aligned–gate mosfet
* seth boyden, (1788-1870), usa — nail-making machine
* walter houser brattain, (1902-1987), usa — co-inventor of the transistor
* louis braille, (1809-1852), france — the braille writing system
* karl ferdinand braun, (1850-1918), germany — cathode-ray tube oscilloscope
* harry brearley, (1871-1948), uk — stainless steel
* john moses browning, (1855-1926), usa — automatic handgun
* edwin beard budding, (1795-1846), uk — lawnmower

* c`ai lun, (50 ad - 121), china — paper
* marvin camras, (1916 - 1995), usa — magnetic recording
* chester carlson, (1906-1968), usa — xerography
* wallace carothers, (1896-1937), usa — nylon
* dennis charter, (1952-), australia — secure electronic payment system
* adrian chernoff, (1971-), usa — gm autonomy, gm hy-wire, rubber bandits
* niels christensen (1865- 1952), usa — o-ring
* samuel hunter christie, (1784-1865), uk — wheatstone bridge
* christopher cockerell, (1910-1999), uk — hovercraft
* jacques cousteau, (1910-1997), france — co-inventor of the aqualung and the nikonos underwater camera
* aeneas coffey, (1780-1852), ireland, heat exchanger, inventor of the coffey still
* holger crafoord, (1908-1982), sweden — inventor of the artificial kidney
* jános csonka, (1852-1939), hungary — co-inventor of carburetor
* nicolas-joseph cugnot, (1725-1804), france — automobile
* juan de la cierva, (1895-1936), spain — the autogyro
* william cullen, (1710-1790), uk — first artificial refrigerator
* glenn curtiss, (1878 - 1930), usa — ailerons
* corliss orville burandt, usa — variable valve timing
* joseph constantine carpue, (1764-1846), france — rhinoplastic surgery
* joseph bienaimé caventou, (1795-1877), france — caffeine, chlorophyll, strychnine
* george cayley, (1773-1857), (uk) — tension-spoke wheels, caterpillar track
* georges claude, (1870-1960), france — neon lamp
* josephine cochrane, (1839-1913), usa — dishwasher
* cornelis corneliszoon, (1550-1607), the netherlands — sawmill
* bartolomeo cristofori, (1655-1731), italy — piano
* william cumberland cruikshank, (1745-1800), uk — chlorinated water

* gustaf dalen, (1869-1937), sweden — aga cooker; dalen light; agamassan
* salvino d'armate, (?-?), italy — credited for inventing eyeglasses in 1284
* joseph day, (1855-1946), uk — the crankcase compression two stroke engine
* lee deforest, (1873-1961), usa — triode
* sir james dewar, (1842-1923), uk — thermos flask
* miksa deri (1854-1938), hungary — co-inventor of transformer
* william kennedy laurie dickson, (1860-1935), uk — motion picture camera
* rudolf diesel, (1858-1913), germany — diesel engine
* william h. Dobelle, (1943-2004), united states — first functioning artificial eye
* karl drais, (1785-1851), germany — dandy horse (draisine)
* cornelius drebbel, (1572-1633), the netherlands — first navigable submarine
* richard drew, (1899-1980), usa — sticky tape
* charles brace darrow, (1889-1967). Usa — monopoly
* jacob davis, (1868-1908), usa — riveted jeans
* edmund davy, (1785-1857), ireland — acetylene
* humphry davy, (1778-1829), uk — davy miners lamp
* bryan donkin, (1768-1855), uk — print industry composition roller
* john boyd dunlop, (1840-1921) uk — first practical pneumatic tyre
* karl drais, (1785-1851), germany — velocipede

* george eastman, (1854-1932), usa — film-roll
* thomas edison, (1847-1931), usa — phonograph, commercially practical light bulb, motion picture projector, stock ticker, etc.
* willem einthoven, (1860-1927), the netherlands — the electrocardiogram
* douglas engelbart, (1925-), usa — the computer mouse [1]
* rune elmqvist, (1857-1924), sweden — implantable pacemaker
* john ericsson, (1803-1889), sweden — the two screw-propeller
* lars magnus ericsson, (1846-1926), sweden — the handheld micro telephone
* ole evinrude, (1877-1934), norway — outboard motor

* samuel face, (1923-2001), usa — concrete flatness/levelness technology; lightning switch
* philo farnsworth, (1906-1971), usa — electronic television
* james fergason, (1934-), usa — improved liquid crystal display
* reginald fessenden, (1866-1932), canada — two-way radio
* adolf eugen fick, (1829-1901), germany — contact lens
* alexander fleming, (1881-1955), scotland — penicillin
* sandford fleming, (1827-1915), inventor of standard universal time (1879)
* john ambrose fleming, (1848-1945), england — vacuum diode
* benjamin franklin, (1706-1790), usa — the pointed lightning rod conductor, bifocal glasses, the franklin stove, the glass harmonica
* william friese-greene, (1855-1921), england — cinematography
* buckminster fuller, (1895-1983), usa — geodesic dome
* gerhard fischer, germany/usa — hand-held metal detector
* augustin-jean fresnel, (1788-1827), france — fresnel lens
* jean bernard léon foucault, (1819-1868), france — foucault pendulum (earth rotation), gyroscope, eddy current
* benoît fourneyron, (1802-1867), france — water turbine
* enrico fermi, (1901-1954), italy — nuclear reactor
* michael faraday, (1791-1867), england — rubber balloon, electric transformer

* dennis gabor, (1900-1979), hungary — holography
* elmer r. Gates, (1859-1923), foam fire extinguisher, electric loom mechanisms, magnetic & diamagnetic separators, educational toy ("box & blocks")
* william henry gates iii, (1955-), windows operating system, chief architect of visual basic
* robert goddard, (1882-1945), usa — liquid fuel rocket
* heinrich göbel, (1818-1893), germany — first functional incandescent lamp
* peter carl goldmark, (1906-1977), hungary — vinyl record (lp)
* gordon gould, (1920-2005), usa — co-inventor of laser
* richard hall gower, (1768-1833), england — ship's hull and rigging
* bette nesmith graham, (1924-1980), usa — liquid paper
* chester greenwood, (1858-1937), usa — thermal earmuffs
* james gregory, (1638-1675), scotland — reflecting telescope
* william robert grove, (1811-1896), wales — fuel cell
* otto von guericke, (1602-1686), germany — vacuum pump, manometer, dasymeter,
* johann gutenberg, (c 1390s-1468), germany — modern movable type printing press
* hans wilhelm geiger, (1882-1945), germany — geiger counter
* henri giffard, (1825-1882), france — powered airship, injector
* charles goodyear, (1800-1860), usa — vulcanization of rubber
* samuel guthrie, (1782 - 1848), usa — discovered chloroform
* james henry greathead, (1844-1896), south africa — tunnel boring machine, tunnelling shield technique