Famous United States Patents Donated by Professor Homer O. Blair
| Patent No. | Date Issued | Issued to | Patent | Page | 
| No number | July 30, 1790 | Samuel Hopkins | Improved potash process (1st US patent) | 1 | 
| No number | Mar. 14, 1794 | Eli Whitney | Cotton gin | 3 | 
| No number | June 26, 1797 | Charles Newbold | Cast iron plough | 24 | 
| No number | June 21, 1834 | Cyrus McCormick | Reaper | 28 | 
| No number | Sept. 9, 1835 | Charles Goodyear | Transparent cement | 34 | 
| No number | Feb. 25, 1836 | Samuel Colt | Revolver | 36 | 
| 1 | July 13, 1836 | John Ruggles | Railroad wheels | 43 | 
| 68 | Oct. 24, 1836 | Alonzo Phillips | Friction matches | 47 | 
| 132 | Feb. 25, 1837 | Thomas Davenport | Electric motor | 48 | 
| Reissue 1 | Jan. 9, 1838 | Julius Hatch | Grain drill (planter) | 51 | 
| 1,154 | May 17, 1839 | Lorenzo Adkins | Water wheel | 54 | 
| 1,304 | Aug. 29, 1839 | Samuel Colt | Revolver | 54 | 
| 1,647 | June 20, 1840 | Samuel F.B. Morse | Telegraph | 64 | 
| 2,252 | Sept. 11, 1841 | John Rand | Preserving paint (collapsible tube) | 71 | 
| 2,556 | Apr. 16, 1842 | Salvin Kellogg | Stove | 73 | 
| 3,630 | June 13, 1844 | Linus Yale | Door lock | 76 | 
| 3,633 | June 15, 1844 | Charles Goodyear | Rubber fabric | 79 | 
| 4,750 | Sept. 10, 1846 | Elias Howe | Forming a seam | 85 | 
| 5,104 | May 8, 1847 | Robert Thomson | Rubber tires | 91 | 
| 5,159 | July 10, 1847 | Richard Hoe | Printing press | 96 | 
| Re. 117 | June 13, 1848 | Samuel F.B. Morse | Morse code | 105 | 
| 6,162 | Mar. 10, 1849 | George Corliss | Corliss steam engine | 112 | 
| 6,281 | Apr. 10, 1849 | Walter Hunt | Safety pin | 120 | 
| 6,469 | May 22, 1849 | Abraham Lincoln | Buoying boats over shoals | 122 | 
| 7,697 | Oct. 8, 1850 | Alinzor Clark | Pitchfork | 125 | 
| 7,889 | Jan. 7, 1851 | Jacob Neff | Electro-magnetic motor | 128 | 
| 8,080 | May 6, 1851 | John Gorrie | Ice-making machine | 131 | 
| 8,973 | May 25, 1852 | E.G. Otis | Railroad car brake | 143 | 
| 10,535 | Feb. 14, 1854 | Smith and Wesson | Firearm | 147 | 
| 11,766 | Oct. 3, 1854 | Richard Tilghman | Decomposing fat | 151 | 
| 13,661 | Oct. 9, 1855 | Isaac Singer | Sewing Machine | 154 | 
| 16,082 | Nov. 11, 1856 | Henry Bessemer | Making steel | 158 | 
| 22,186 | Nov. 30, 1858 | John Mason | Mason jar | 168 | 
| 25,684 | Oct. 4, 1859 | Gen. J.E.B. Stuart | Attaching sabers to belts | 170 | 
| 28,670 | June 12, 1860 | Nehemiah Hodge | Railroad air brake | 172 | 
| Re. 1,154 | Mar. 19, 1861 | Elias Howe | Sewing machine | 177 | 
| 36,836 | Nov. 4, 1862 | Richard Gatling | Gatling gun | 181 | 
| 38,200 | Apr. 14, 1863 | William Bullock | Web printing press | 184 | 
| 67,425 | Aug. 6, 1867 | Sheldon Everitt | Indented kettle | 199 | 
| Patent No. | Date Issued | Issued to | Patent | Page | 
| 79,265 | June 23, 1868 | Sholes, Glidden & Soule | Typewriter | 201 | 
| 79,965 | July 14, 1868 | Alvin Fellows | Tape measure | 207 | 
| 88,006 | Mar. 23, 1869 | Leigh Burton | Elec. resistance heater | 209 | 
| 88,929 | Apr. 13, 1869 | George Westinghouse | Railroad air brake | 211 | 
| 91,145 | June 8, 1869 | Ives McGaffey | Vacuum cleaner | 215 | 
| 92,379 | July 6, 1869 | Charles Singer | Air-cooled rocking chair | 218 | 
| 93,691 | Aug. 17, 1869 | James Eads | Heavy gun carriage | 220 | 
| 97,106 | Nov. 23, 1869 | Wm. & J. Murkland | Carpet power-loom | 224 | 
| 105,338 | July 12, 1870 | John & I. Hyatt | Celluloid (1st synthetic plastic) | 231 | 
| 111,197 | Jan. 24, 1871 | Charles Goodyear | Goodyear welt | 232 | 
| 113,448 | Apr. 4, 1871 | Mary Potts | Mrs. Potts sad iron | 236 | 
| 121,992 | Dec. 19, 1871 | Samuel Clemens | Garment straps | 239 | 
| 124,405 | Mar. 5, 1872 | George Westinghouse | Railroad air brake | 241 | 
| 127,568 | June 4, 1872 | Robert Chesebrough | Vaseline | 250 | 
| 130,661 | Aug. 20, 1872 | William Robinson | Elec. train signaling | 251 | 
| 135,245 | Jan. 18, 1873 | Louis Pasteur | Pasteurization | 255 | 
| 138,405 | Apr. 29, 1873 | Eli Janney | Railroad car couplings | 258 | 
| 140,245 | June 24, 1873 | Samuel Clemens | Scrapbook | 261 | 
| 140,488 | July 1, 1873 | Thomas Edison | Improved telegraph | 263 | 
| 141,072 | July 22, 1873 | Louis Pasteur | Yeast process | 268 | 
| 157,124 | Nov. 24, 1874 | Joseph Glidden | Barbed wire (the Winner) | 272 | 
| 157,140 | Nov. 24, 1874 | Stephen Southworth | Dental amalgam | 274 | 
| 174,465 | Mar. 7, 1876 | Alexander Graham Bell | Telephone | 275 | 
| 182,346 | Sept. 19, 1876 | Melville Bissell | Carpet Sweeper | 281 | 
| 194,047 | Aug. 14, 1877 | Nicolaus Otto | Internal combustion engine | 284 | 
| 199,612 | July 29, 1878 | Melville Bissell | Improved carpet sweeper | 292 | 
| 200,521 | Feb. 19, 1878 | Thomas Edison | Phonograph | 295 | 
| 202,441 | Apr. 16, 1878 | John Hyatt | Coating items with Celluloid | 298 | 
| 206,112 | July 16, 1878 | Thaddeus Hyatt | Reinforced concrete | 301 | 
| 212,000 | Feb. 4, 1879 | John Heinz | Vegetable sorters | 311 | 
| 219,208 | Sept. 2, 1879 | Charles Brush | Carbon arc light | 315 | 
| 223,898 | Jan. 27, 1880 | Thomas Edison | Electric light | 322 | 
| 224,573 | Feb. 17, 1880 | Emile Berliner | Microphone | 326 | 
| 226,052 | Mar. 30, 1880 | John Ericsson | Air engine | 329 | 
| 227,028 | Apr. 27, 1880 | James Mauzey | Solar heater | 333 | 
| 237,664 | Feb. 8, 1881 | Frederic Ives | Photo-relief printing plates | 336 | 
| 239,659 | Apr. 5, 1881 | Houston & Thomson | Milk creamer | 337 | 
| 240,546 | Apr. 26, 1881 | John Reece | Button hole sewing machine | 339 | 
| 240,634 | Apr. 26, 1881 | Frederick Allen | Life raft | 353 | 
| 242,786 | June 14, 1881 | John McTammany | Player piano | 356 | 
| Patent No. | Date Issued | Issued to | Patent | Page | 
| 245,501 | Aug. 9, 1881 | Frederic Ives | Photo-relief printing plate | 361 | 
| 250,126 | Nov. 29, 1881 | Francis Blake | Speaking telephone | 363 | 
| 257,103 | Apr. 25, 1882 | John Sutliff | Perpetual motion machine | 366 | 
| 257,487 | May 9, 1882 | William F. Ford | Stethoscope | 368 | 
| 259,054 | June 6, 1882 | Henry Seely | Electric iron | 370 | 
| 271,363 | Jan. 30, 1883 | Ritty & Birch | Cash register | 373 | 
| 297,383 | Apr. 22, 1884 | John Golding | Expanded metal screen | 379 | 
| 306,594 | Oct. 14, 1884 | George Eastman | Photographic film | 381 | 
| 324,535 | Aug. 18, 1885 | Samuel Clemens | Game | 385 | 
| 341,214 | May 4, 1886 | C. Bell & Tainter | Phonograph disk record | 388 | 
| 347,140 | Aug. 10, 1886 | Elihu Thomson | Electric welding | 398 | 
| 372,786 | Nov. 8, 1887 | Emile Berliner | Gramophone disk record | 403 | 
| 373,064 | Nov. 15, 1887 | Carl Gassner | Dry cell battery | 407 | 
| 381,968 | May 1, 1888 | Nikola Tesla | AC synchronous motor | 408 | 
| 381,969 | May 1, 1888 | Nikola Tesla | Synchronous motor | 417 | 
| 381,970 | May 1, 1888 | Nikola Tesla | Electric distributor | 421 | 
| 382, 279 | May 1, 1888 | Nikola Tesla | Induction magnetic motor | 426 | 
| 382,280 | May 1, 1888 | Nikola Tesla | Alternating current transmission | 431 | 
| 382,281 | May 1, 1888 | Nikola Tesla | Alternating current transmission | 435 | 
| 382,282 | May 1, 1888 | Nikola Tesla | Electric distribution | 444 | 
| 388,003 | Aug. 14, 1888 | O. Shallenberger | Alternating current meter | 449 | 
| 388,850 | Sept. 4, 1888 | George Eastman | Roll film camera (Kodak) | 455 | 
| 389,124 | Sept. 4, 1888 | Edward Weston | Solar cell | 464 | 
| 389,125 | Sept. 4, 1888 | Edward Weston | Solar cell | 467 | 
| 392,046 | Oct. 30, 1888 | John Loud | Ball-point pen | 470 | 
| 395,782 | Jan. 8, 1889 | Herman Hollerith | Computer (punch card accounting) | 473 | 
| 400,655 | Apr. 2, 1889 | Charles Hall | Hall aluminum process | 480 | 
| 412,724 | Oct. 15, 1889 | William Calver | Solar reflector | 483 | 
| 424,695 | Apr. 1, 1890 | Charles Van Depoele | Electric trolley car | 486 | 
| 428,057 | May 13, 1890 | Nikola Tesla | Electric generator | 493 | 
| 430,212 | June 17, 1890 | Hiram Maxim | Smokeless powder | 496 | 
| 436,532 | Sept. 16, 1890 | O. Mergenthaler | Linotype | 502 | 
| 441,831 | Dec. 2, 1890 | George Eastman | Photographic film | 538 | 
| 447,918 | Mar. 10, 1891 | Almon Strowger | Automatic telephone exchange | 542 | 
| 459,341 | Sept. 8, 1891 | Charles Miller | Clothes wringer | 548 | 
| 473,653 | Apr. 26, 1892 | Sarah Boone | Ironing board for sleeves | 551 | 
| 474,230 | May 3, 1892 | Thomas Edison | Speaking telegraph | 554 | 
| Patent No. | Date Issued | Issued to | Patent | Page 
 | 
| 486,909 | Nov. 29, 1892 | Almon Strowger | Automatic telephone exchange | 557 | 
| 493,426 | Mar. 14, 1893 | Thomas Edison | Motion picture projector | 568 | 
| 493,426 | Apr. 11, 1893 | Frederic Ives | Half tone printing plate | 575 | 
| 496,443 | Apr. 11, 1893 | Chas. Van Depoele | Trolley 
 | 578 | 
| 504,038 | Aug. 29, 1893 | Whitcomb Judson | Zipper | 585 | 
| 522,066 | June 26, 1894 | Carl de Laval | Supersonic steam turbine nozzle | 589 | 
| 527,377 | Oct. 9, 1894 | Melvin Severy | Solar cell | 594 | 
| 527,379 | Oct. 9, 1894 | Melvin Severy | Solar cell | 600 | 
| 538,366 | Mar. 26, 1895 | Henry Simmons | Railroad car for passing | 604 | 
| 536,569 | Mar. 26, 1895 | Francis Jenkins | Phantoscope | 608 | 
| 540,648 | June 11, 1985 | Charles Duryea | Automobile | 610 | 
| 542,846 | July 16, 1895 | Rudolf Diesel | Diesel engine | 620 | 
| 549,160 | No.v. 5, 1895 | George Selden | Automobile | 630 | 
| 556,972 | Mar. 24, 1896 | Clement Hardy | Rotary disk plow | 636 | 
| 557,994 | Apr. 7, 1896 | Tolbert Langston | Justifying lines of type | 642 | 
| 560,291 | May 19, 1896 | Edward Acheson | Carborundum | 746 | 
| 581,213 | Apr. 20, 1897 | Simon Lake | Submarine | 751 | 
| 586,193 | July 13,1897 | Guglielmo Marconi | Wireless telegraph | 764 | 
| 588,177 | Aur. 17, 1897 | Harry Reagan | Solar cell | 775 | 
| 589,168 | Aug. 31, 1897 | Thomas Edison | Motion picture camera | 779 | 
| 608,755 | Aug. 9, 1898 | Henry Cottle | Storing and using solar heat | 785 | 
| 608,845 | Aug. 9, 1989 | Rudolf Diesel | Diesel engine | 788 | 
| 610,040 | Aug. 30, 1898 | Henry Ford | Carburetor | 794 | 
| 610,861 | Sept. 13, 1898 | Hannibal Goodwin | Roll photographic film | 797 | 
| 612,195 | Mar. 14, 1899 | F. Graf Zeppelin | Zeppelin | 803 | 
| 634,042 | Oct. 3, 1899 | John Thurman | Vacuum cleaner | 810 | 
| 635,919 | Oct. 31, 1899 | Charles Curtis | Gas turbine | 814 | 
| 644,077 | Feb. 27,1900 | Felix Hoffman | Aspirin | 827 | 
| 645,576 | Mar. 20,1900 | Nikola Tesla | Wireless transmission of electric power | 828 | 
| 657,711 | Sept. 11,1900 | F. & F. Stanley | Stanley Steamer | 835 | 
| 661,619 | Nov. 13,1900 | Valdemar Poulsen | Magnetic tape recording | 839 | 
| 668,269 | Feb. 19,1901 | Taylor & White | High speed steel tools | 846 | 
| Re. 11,913 | June 4, 1901 | Guglielmo Marconi | Wireless telegraphy | 852 | 
| 686,046 | Nov. 5, 1901 | Henry Ford | Automobile | 861 | 
| 694,154 | Feb. 25,1902 | John Holland | Submarine | 866 | 
| 708,553 | Sept. 9,1902 | John Holland | Submarine | 869 | 
| Re. 12,037 | Sept. 30,1902 | Thomas Edison | Motion picture camera | 873 | 
| Re. 12,038 | Sept. 30, 1902 | Thomas Edison | Motion picture film | 879 | 
| 721,117 | Feb. 17,1903 | Henry Wood | Automatic stereotype printing | 885 | 
| 727,650 | May 12, 1903 | Carl Linde | Linde oxygen process | 909 | 
| 728,173 | May 12, 1903 | Carl Linde | Equip. for Linde oxygen process | 914 | 
| Patent No. | Date Issued | Issued to | Patent | Page | 
| 745,157 | Nov. 24,1903 | Clyde Coleman | Automobile self starter | 919 | 
| Re. 12,192 | Jan. 122,1904 | Thomas Edison | Motion picture film | 927 | 
| 762,561 | June 14,1904 | Seiberling & Stevens | Tire making machine | 933 | 
| 763,772 | June 28,1904 | Guglielmo Marconi | Wireless telegraph equip. | 944 | 
| 766,768 | Aug. 2,1904 | Michael Owens | Glass shaping machine | 951 | 
| 775,134 | Nov. 15,1904 | King Gillette | Gillette safety blade & razor | 976 | 
| 775,135 | Nov. 15,1904 | King Gillette | Gillette safety razor | 981 | 
| 795,525 | July 25,`1905 | Carl Linde | Equip. for Linde oxygen process | 985 | 
| 803,684 | Nov. 7,1905 | John Fleming | Two element vacuum tube | 988 | 
| 821,393 | May 22,1906 | O. & W. Wright | Airplane | 995 | 
| 823,022 | June 12,1906 | John Ballance | Sound movies | 1005 | 
| 836,070 | Nov. 13,1906 | Lee de Forest | Radio tube detector | 1008 | 
| 841,387 | Jan. 15,1907 | Lee de Forest | Radio amplifier tube | 1011 | 
| 879,532 | Feb. 18,1908 | Lee de Forest | Triode | 1015 | 
| 942,809 | Dec. 7,1909 | Leo Baekeland | Bakelite plastic | 1019 | 
| 952,513 | Mar. 22,1910 | James Dow | Insulator for electric circuits | 1022 | 
| 968,166 | Aug. 23,1910 | Charles Knight | Sleeve valve engine | 1025 | 
| 971,501 | Sept. 27,1910 | Haber & Rossignol | Haber process for ammonia | 1040 | 
| 1,000,000 | Aug. 8,1911 | Francis Holton | Vehicle tire | 1041 | 
| 1,014,853 | Jane. 16,1912 | Lillian Russell | Dresser trunk | 1044 | 
| 1,030,178 | June 18,1912 | Peter Hewitt | Mercury vapor lamp | 1050 | 
| 1,032,394 | July 16,1912 | Bradley Fiske | Airborne torpedoes | 1054 | 
| 1,049,667 | Jan. 7,1913 | William Burton | Cracking petroleum | 1057 | 
| 1,077,219 | Oct. 28,1913 | William Coblentz | Solar cell | 1060 | 
| 1,082,933 | Dec. 30,1913 | William Coolidge | Tungsten filament light bulb | 1063 | 
| 1,102,653 | July 7,1914 | Robert Goddard | Two-stage rocket | 1074 | 
| 1,103,503 | July 14,1914 | Robert Goddard | Rocket | 1078 | 
| 1,113,149 | Oct. 6,1914 | Edwin Armstrong | Wireless receiver | 1087 | 
| 1,115,674 | Nov. 3,1914 | Mary Jacob | Brassiere | 1096 | 
| 1,127,465 | Feb. 9,1915 | Almer McAfee | Catalytic cracking of petroleum | 1101 | 
| 1,133,435 | Mar. 30,1915 | Reg. Fessenden | Phototube | 1109 | 
| 1,156,215 | Oct. 12,1915 | Glenn Curtis | Seaplane | 1114 | 
| 1,173,079 | Feb. 22,1916 | E. Alexanderson | Radio tuning system | 1121 | 
| 1,180,159 | Apr. 18 ,1916 | Irving Langmuir | Gaseous electric light | 1129 | 
| 1,242,872 | Oct. 9,1917 | Clarence Saunders | Supermarket | 1136 | 
| 1,245,446 | Nov. 6,1917 | Carl Englund | Imprv. Amplitude modulation | 1142 | 
| 1,279,471 | Sept. 17,1918 | Elmer Sperry | Sperry gyrocompass | 1145 | 
| 1,350,201 | Aug. 17,1920 | Paul Yeso | Helicopter | 1164,1146 | 
| 1,357,521 | Nov. 2,1920 | Clarence Saunders | Supermarket | 1168 | 
| Patent No. | Date Issued | Issued to | Patent | Page | 
| 1,370,316 | Mar. 1, 1921 | Harry Houdini | Diver's suit | 1173 | 
| 1,375,931 | Apr. 26,1921 | Auguste Rateau | Aircraft turbosupercharger | 1178 | 
| 1,386,791 | Aug. 9,1921 | George Murdock | Self-sealing gas tank | 1183 | 
| 1,404,539 | Jan. 24,1922 | Christian Nelson | Ice cream bar | 1194 | 
| 1,413,121 | Apr. 18,1922 | John Johnson | Adjustable wrench | 1197 | 
| 1,522,176 | Jan. 6,1925 | G.W. Carver | Cosmetic from peanuts | 1202 | 
| 1,537,879 | May 12,1925 | Alden Putnam | Treaded pneumatic tire | 1204 | 
| 1,551,834 | Sept. 1,1925 | Adolph Monsen | Helicopter | 1207 | 
| 1,558,436 | Oct. 20,1925 | Irving Langmuir | High vacuum radio tube | 1211 | 
| 1,573,846 | Feb. 23,1926 | Thomas Midgley | Tetraethyl lead gasoline additive | 1221 | 
| 1,575,263 | Mar. 2,1928 | Mrs. R. Valentino | Doll | 1226 | 
| 1,581,188 | Apr. 20,1926 | Colin Fink | Chrome plating | 1230 | 
| 1,655,113 | Jan. 3,1928 | Nikola Tesla | Convertiplane | 1234 | 
| 1,704,061 | Mar.5,1929 | Clarence Saunders | Supermarket | 1240 | 
| 1,721,530 | July 23,1929 | Jacob Schick | Schick electric razor | 1243 | 
| 1,760,820 | May 27,1930 | Richard Drew | Scotch masking tape | 1248 | 
| 1,773,079 | Aug. 12,1930 | Clarence Birdseye | Packaged frozen food | 1257 | 
| 1,773,980 | Aug. 26,1930 | Philo Farnsworth | Television system | 1271 | 
| 1,773,981 | Aug. 26,1930 | Philo Farnsworth | Television receiver | 1284 | 
| 1,781,541 | Nov. 11,1930 | Albert Einstein & Leo Szilard | Servel gas refrigerator | 1289 | 
| 1,806,763 | May 26,1931 | George McCarthy | Microfilm camera | 1293 | 
| 1,833,847 | Nov. 24,1931 | Midgley, Henne & McNary | Flurocarbon refrigeration (Freon) | 1304 | 
| 1,911,127 | May 23,1933 | Max Wasserberg | Beach and lawn chair | 1308 | 
| 1,911,129 | May 23,1933 | Gertrude Ederle & C. Kelsey | Paddle-driven swimming device | 1313 | 
| 1,917,099 | July 4,1933 | William Coolidge | X-ray tube for inside the body | 1317 | 
| 1,918,848 | July 18,1933 | Ediwn Land | Polaroid glass, etc. | 1320 | 
| 1,941,066 | Dec. 26,1933 | Edwin Armstrong | FM radio | 1325 | 
| 1,946,312 | Feb. 6,1934 | William Coolidge | X-ray tube | 1331 | 
| 1,948,384 | Feb. 20,1934 | Ernest Lawrence | Cyclotron | 1333 | 
| 2,000,000 | Apr. 30,1935 | Joseph Ledwinka | Pneumatic-tired wheel for RR | 1342 | 
| 2,010,712 | Aug. 6,1935 | William Coolidge | Cathode ray tube | 1345 | 
| 2,021,907 | Nov. 26,1935 | Vladimir Zworykin | Television system | 1349 | 
| 2,026,082 | Dec. 31,1935 | Charles Darrow | Monopoly game | 1352 | 
| 2,040,248 | May 12,1936 | Dvorak & Dealey | Dvorak typewriter keyboard | 1366 | 
| 2,058,562 | Oct. 27, 1936 | Gustav Bucky | Light-intensity-sensitive camera | 1375 | 
| 2,066,708 | Jan. 5, 1937 | Samuel Young | Aluminum screw-type bottle cap | 1378 | 
| 2,071,250 | Feb. 16,1937 | Wallace Carothers | Nylon | 1383 | 
| 2,071,251 | Feb. 16,1937 | Wallace Carothers | Nylon fiber | 1393 | 
| 2,081,157 | July 13,1937 | Leroy Lind | Servi-Soft water softener | 1402 | 
| Patent No. | Date Issued | Issued to | Patent | Page | 
| 2,139,296 | Dec. 6,1938 | Valdimir Zworykin | Cathode ray tube, television | 1408 | 
| 2,168,892 | Aug. 8,1939 | Vladimir Zworykin | Making impr. cathode ray tube | 1411 | 
| 2,177,627 | Oct. 31,1939 | Richard Drew | Scotch cellophane tape | 1415 | 
| 2,198,423 | Apr. 23,1940 | Herman Anthony | Leak-proof flashlight battery (Ray-O-Vac) | 1423 | 
| 2,206,634 | July 2,1940 | Fermi, Amaldi, Pontecorvo, Rasetti & Segre | Radioactive isotope production | 1427 | 
| 2,221,776 | Nov. 19,1940 | Chester Carlson | Xerography | 1435 | 
| 2,291,158 | July 28,1942 | Holstensson &Arvidius | Phonograph record changer | 1442 | 
| 2,292,387 | Aug. 11, 1942 | Hedy Markey (Hedy Lamarr) 7 Anthiel | Topedo controls | 1436 | 
| 2,297,691 | Oct. 6,1942 | Chester Carlson | Improved Xerography | 1463 | 
| 2,329,074 | Sept. 7,1943 | Paul Muller | Insecticide (DDT) | 1473 | 
| 2,351,004 | June 13,1944 | Marvin Camras | Magnetic wire recording | 1478 | 
| 2,351,005 | June 13,1944 | Marvin Camras | Magnetic wire recording | 1483 | 
| 2,351,006 | June 13,1944 | Marvin Camras | Magnetic wire recording | 1494 | 
| 2.351,007 | June 13,1944 | Marvin Camras | Magnetic wire recording | 1499 | 
| 2.351,008 | June 13,1944 | Marvin Camras | Magnetic wire recording | 1506 | 
| 2,351,009 | June 13,1944 | Marvin Camras | Magnetic wire recording | 1510 | 
| 2,351,010 | June 13,1944 | Marvin Camras | Magnetic wire recording | 1514 | 
| 2,351,011 | June 13,1944 | Marvin Camras | Magnetic wire recording | 1519 | 
| 2,366,007 | Dec. 28,1944 | Gaetano D'Alelio | Sulphonated polyvinyl polymers | 1524 | 
| 2,379,862 | July 10,1945 | Vannevar Bush | Justifying typewriter | 1527 | 
| 2,391,859 | Jan. 1, 1946 | Earl Babcock | Window air conditioner | 1556 | 
| 2,402,577 | June 25, 1946 | Dorothy Rodgers | Jonny mop | 1567 | 
| 2,404,334 | July 16,1946 | Frank Whittle | Jet engine | 1571 | 
| 2,407,966 | Sept. 17,1946 | James Sprague | Sulfonamide (Sulfa drugs) | 1578 | 
| 2,479,295 | Aug. 16,1949 | Behrens, Corse,Jones & Soper | Improved penicillins | 1583 | 
| 2,482,773 | Sept. 27,1949 | T. Heironymous | Psionic machine | 1608 | 
| 2,485,760 | Oct. 25, 1949 | Millis, Gagnebin | Ductile cast iron | 1614 | 
| 2,524,035 | Oct. 3,1950 | Bardeen & Brattain | Point contact transistor | 1635 | 
| 2,535,018 | Dec. 19,1950 | Rose Marie Reid | Bathing suit | 1649 | 
| 2,543,181 | Feb. 27,1951 | Edwin Land | Polaroid film | 1653 | 
| 2,554,816 | May 29, 1951 | Clapp & Robin | Improved sulfa drugs | 1685 | 
| Patent No. | Date Issued | Issued to | Patent | Page | 
| 2,569,347 | Sept. 25,1951 | William Shockley | Junction transistor | 1689 | 
| 2.591.556 | Apr. 15, 1952 | K. Germeshausen | Hydrogen thryaton | 1702 | 
| 2,602.769 | July 8, 1952 | Murray & Peterson | Cotorticosteroids | 1711 | 
| 2,613,795 | Oct. 14,1952 | Lin Yutang | Chinese typewriter | 1765 | 
| 2,648,085 | Aug. 11,1953 | Dorothy Rodgers | Improved Jonny mop | 1804 | 
| 2,682,235 | June 29,1954 | Buckminster Fuller | Geodesic dome | 1807 | 
| 2,708,656 | May 17,1955 | Fermi & Szilard | Atomic reactor | 1819 | 
| 2,711,534 | June 21,1955 | Robert Rines | Hi-definition image by scanning radar | 1876 | 
| 2,728,867 | Dec. 27,1955 | Volney Wilson | Atomic battery | 1888 | 
| 2,745,038 | May 8, 1956 | George Sziklai | Improved television circuit | 1893 | 
| 2,767,984 | Oct. 23,1956 | John Zuercher | Automatic bowling pin spotter | 1898 | 
| 2,772,360 | Nov. 27,1956 | William Shockley | Improved transistor | 1915 | 
| 2,790,362 | Apr. 30,1957 | Higonnet & Moyround | Photo-typesetter (Photon) | 1930 | 
| 2,799,619 | July 16,1957 | Seifter,Monaco & Hoover | Tranquilizer | 1973 | 
| 2,800,631 | July 23,1957 | Suess, Trenkler. Hauttmann &Rinesch | Oxygen steel process | 1975 | 
| 2,816,721 | Dec. 17, 1957 | Richard Taylor | Rocket engine | 1983 | 
| 2,835,548 | May 20,1957 | Robert Baumann | Space satellite | 1986 | 
| 2,866,012 | Dec. 23,1958 | Ginsburg & Henderson | Video tape recording | 1992 | 
| 2,879,439 | Mar. 24,1959 | Charles Townes | Maser | 2000 | 
| 2,881,246 | Apr. 7,1959 | Sherman Fairchild | Improved photo-engraving | 2007 | 
| 2,882,643 | Apr. 21,1959 | Jianas, Spanos, John Dos Passos & Towne | Toy bubble gun | 2013 | 
| 2,929,922 | Mar. 22,1960 | Schawlow & Townes | Lasers | 2016 | 
| 2,947,608 | Aug. 2,1960 | Howard Hall | Synthetic diamond process | 2024 | 
| 2,947,609 | Aug. 2, 1960 | Herbert Strong | Synthetic diamond process | 2031 | 
| 2,947,610 | Aug. 2, 1960 | Hall & Strong | Synthetic diamond process | 2042 | 
| 2,947,611 | Aug. 2,1960 | Francis Bundy | Synthetic diamond process | 2050 | 
| 2,956,114 | Oct. 11,1960 | Ginsburg, Henderson, Dolby & Anderson | Videotape recorder | 2055 | 
| 2,981,877 | Apr. 25,1961 | Robert Noyce | Integrated circuit | 2068 | 
| 3,000,000 | Sept. 12, 1961 | Kenneth Eldredge | Electronic reading system | 2076 | 
| 3,091,888 | June 4,1963 | Robert Patch (6 years old) | Toy truck | 2086 | 
| 3,093,346 | June 11,1963 | Faget, et al | Mercury space capsule | 2091 | 
| 3,129,001 | Apr. 14,1964 | Paul Winchell | Novelty mask | 2098 | 
| 3,139,957 | July 7, 1964 | Buckminster Fuller | Improved Geodesic dome | 2102 | 
| Patent No. | Date Issued | Issued to | Patent | Page | 
| 3,156,523 | Nov. 10,1964 | Glenn Seaborg | Americium (Element 95) | 2114 | 
| 3,295,591 | Jan. 3,1967 | Harry Thomason | Solar heating and cooling | 2118 | 
| 3,353,115 | Nov. 14, 1967 | Theodore Maiman | Ruby laser operating system | 2115 | 
| 3,365,583 | Jan. 23, 0968 | J.B. Gunn | Electric field-Responsive solid state devices | 2131 | 
| 3,426,747 | Feb. 11,1969 | A. Herman &Zeppo Marx | Cardiac pulse watch | 2167 | 
| 3,473,526 | Oct. 21,1969 | A. Herman & Zeppo Marx | Cardiac pulse-rate monitor | 2157 | 
| 3,938,115 | Feb. 11, 1976 | Sidney Jacoby | Smoke & heat alarm | 2160 | 
| 4,000,000 | Dec. 28,1976 | Robert Mendenhall | Recycling asphalt aggregates | 2166 | 
| 4,270,182 | May 26,1981 | Satya Asija | First computer program (software) | 2172 | 
| 4,666,425 | May 19,1987 | Chet Fleming | Keeping a head alive | 2198 | 
