Iowa Patents and Inventors
| Last name | First name | Title | Patent number | City | Year |
| Olson | Jacob | power shovel for loading box cars | 794946 | Albia | 1905 |
| Parks | Ray | card game | 1392351 | Melrose | 1921 |
| Parks | Raymond | chain lock and tightener | 1246692 | Melrose | 1917 |
| Powell | Burke | fish hook | 1286095 | Albia | 1918 |
| Rau | Frederick | gate | 192009 | Albia | 1877 |
| Ray | Edward | pick & c. | 691559 | Haynes | 1902 |
| Rector | Jesse | burial vault | 1069470 | Albia | 1913 |
| Rector | Jesse | burial vault seal | 1659472 | Albia | 1928 |
| Rhoads | Elmer | pick | 1161974 | Lockman | 1915 |
| Rhodes | Jim | hay bale elevator apparatus | 4854809 | Albia | 1989 |
| Robinson | Albert | tire chain fastener | 1330903 | Albia | 1920 |
| Robinson | John | burial vault | 1049269 | Albia | 1912 |
| Rohrer | David | track belt placer for placing construction materials and method for placing construction materials | 6422785 | Albia | 2002 |
| Runquist | Randy | method and apparatus for directional boring under mixed conditions | 6516899 | Lovilia | 2003 |
| Runquist | Randy | apparatus for directional boring under mixed conditions | 6454025 | Lovilia | 2002 |
| Runquist | Randy | directional drilling machine and method of directional drilling | 6357537 | Lovilia | 2002 |
| Runquist | Randy | directional boring | 5778991 | Lovilia | 1998 |
| Runquist | Randy | method and apparatus for directional boring under mixed conditions | 6588516 | Lovilia | 2003 |
| Runquist | Randy | method and apparatus for directional boring under mixed conditions | 6390207 | Lovilia | 2002 |
| Runquist | Randy | drill bit for impact-assisted directional boring | 6533052 | Lovilia | 2003 |
| Runquist | Randy | cutter head for trenchless boring machine | 5687807 | Lovilia | 1997 |
| Runquist | Randy | method and apparatus for directional boring under mixed conditions | 6439319 | Lovilia | 2002 |
| Schulte | Frank | milk can | 1202323 | Albia | 1916 |
| Seals | Charles | drill | 970401 | Lovilia | 1910 |
| Seals | Charles | coal and rock drilling machine | 959079 | Lovilia | 1910 |
| Seibert | George | self cleaning spark plug | 1525415 | Albia | 1925 |
| Selak | Frank | power hay buck | 2448631 | Albia | 1948 |
| Smiley | Albert | building block | 1306781 | Albia | 1919 |
| Smiley | Harry | powder charging device | 1306781 | Albia | 1919 |
| Smiley | Harry | newspaper clamp | 1817424 | Albia | 1931 |
| Smiley | Thomas | edging tool for boot and shoe soles | 88920 | Albia | 1869 |
| Smith | Orbin | stacker head | 817882 | Albia | 1906 |
| Smith | William | attachment for motor cars | 1319806 | Fredric | 1919 |
| Sofranko | John | curtain bracket | 1039606 | Albia | 1912 |
| Stanley | Alton | method of fabricating joints on aluminum doors or the like | 3163930 | Albia | 1965 |
| Stephens | Elijah | automatic gate | 182866 | Albia | 1876 |
| Stephens | William | corn planter | 1162526 | Tyrone | 1915 |
| Stillman | Wilkins | portable lemonade holder and glass washer combined | 423650 | Albia | 1890 |
| Stueber | Conrad | power drill device | 1180554 | Albia | 1916 |
| Sullivan | John | mail bag crane | 572916 | Albia | 1896 |
| Swanson | Marion | wire fence laying machine | 877254 | Albia | 1908 |
| Tate | William | car fender | 1079194 | Buxton | 1913 |
| Taylor | Henry | animal poke | 716495 | Albia | 1902 |
| Thompson | John | traction engine | 1176182 | Avery | 1916 |
| Thompson | John | vaporizer | 1231811 | Avery | 1917 |
| Trimble | Thomas | freight car platform | 240202 | Albia | 1881 |
| Trowbridge | David | fly catcher | 629279 | Tyrone | 1899 |
| Tucker | J. | planter hedge | 93250 | Albia | 1869 |
| Turner | John | liquid dropper | 1459642 | Rexfield | 1923 |
| Turner | William | milk cooler | 244002 | Albia | 1881 |
| Underation | John | auger head | 1581303 | Albia | 1926 |
| Underation | Joseph | clothes pin | 1581304 | Hocking | 1926 |
| Underation | John | drag attachment for planters | 2232814 | Albia | 1941 |
| Underration | John | miner's auger | 1104231 | Hocking | 1914 |
| Urban | Alfred | automatic door operating device | 797540 | Buxton | 1905 |
| Urban | Alfred | mine door | 808125 | Buxton | 1905 |
| Valkelberg | Albert | rail tie and fastener | 1063087 | Hiteman | 1913 |
| Valkelberg | Albert | rail tie and fastening | 1006319 | Hiteman | 1911 |
| Vallandingham | William | flour sifter | 760589 | Albia | 1904 |
| Van Gemert | Cornelius | cultivator attachment | 1303810 | Albia | 1919 |
| Van Gemert | Cornelius | game board | 52862 | Albia | 1919 |
| Visser | William | horse collar | 1559209 | Lovilia | 1925 |
| Walker | Curtis | self spreading hog gambrel | 827196 | Albia | 1906 |
| Watson | Daniel | driving machine for fence posts | 129442 | Albia | 1872 |
| Watts | Cleal | internal combustion engine | 1780854 | Albia | 1930 |
| Wauson | Kathy | Mouse trap | D690789 | Albia | 2013 |
| Wauson | Kathy | low profile tilt-ramp trap | 6631582 | Albia | 2003 |
| Wauson | Kathy | light weight responsive tilt ramp rodent trap | 6691452 | Albia | 2004 |
| Wauson | Kathy | Tilt ramp trap having bosses | 8499488 | Albia | 2013 |
| Wignall | Thomas | rail joint | 835087 | Hynes | 1906 |
| Williams | Thomas | transmission device | 1061893 | Buxton | 1913 |
| Williams | Thomas | stropping device | 1027955 | Hiteman | 1912 |
| Winke | William | arrowhead | 6045468 | Albia | 2000 |
| Wolf | Joseph | auxiliary supporting device for engine casings | 1269890 | Melrose | 1918 |
| Wolf | Joseph | chain lock and tightener | 1246692 | Melrose | 1917 |
| Woodruff | Wilson | fire shield | 589062 | Foster | 1897 |
| Wyatt | George | wireless check row attachment for rotary drop corn planters | 1140556 | Albia | 1915 |
| Wynn | Patrick | live animal trap | 4912872 | Albia | 1990 |
| Yarkosky | Edward | light weight responsive tilt ramp rodent trap | 6691452 | Albia | 2004 |
| Yarkosky | Edward | Tilt ramp trap having bosses | 8499488 | Albia | 2013 |
| Zeek | James | shipping crate | 1193657 | Albia | 1916 |
Ancestry has a database U.S. Patent and Trademark Office Patents, 1790-1909. Original data is from the United States Patent and Trademark Office. USPTO Patent Full-Text and Image Database.
Davenport Public Library Special Collections Indexes. Iowa Patents and Inventors. This is a database indexing Iowa inventors and their patents. This database was created by the State of Iowa Library beginning in the 1980s. In 2010 the Davenport Public Library continued the work of documenting Iowa inventors and their patents. The database covers patents created from 1843 to the present.