Mitchell county
residents
Patents & Inventions
1857 - 1959
~source: Davenport Public Library database, from US Patent and Trademark Office records
~Mitchell county data transcribed by S. Ferrall, April 2022
Names are in alphabetical order, not chronological order
| Name | Residence | Invention | Patent Number | Year |
| Adams, Andrew | Osage | wagon hoist apparatus | 2843423 | 1958 |
| Anderson, Henry | Stacyville | gang plow | 900919 | 1908 |
| Baumgartner, Herman | Osage | apparatus for cooling or agitating air | 1133255 | 1915 |
| Bear, Simeon | Mitchell | telegraphic circuit | 192856 | 1877 |
| Behrns, Herrman | Orchard | guide marker for corn planters | 477983 | 1892 |
| Behrns, Herrman | Orchard | guide marker for corn planters | 544947 | 1895 |
| Birum, Frederick | Osage | automatic sanitary container | 1197098 | 1916 |
| Bissen, Peter | Stacyville | loading apparatus | 886344 | 1908 |
| Bissen, Peter | Stacyville | loading apparatus | 890553 | 1908 |
| Bissen, Peter | Stacyville | loading apparatus | 892119 | 1908 |
| Bissen, Peter | Stacyville | neck yoke attachment | 940230 | 1909 |
| Blandin, Elmer | Osage | electric fence gate handle | 160244 | 1950 |
| Brager, Guul | Osage | combined sewing machine cover and stool | 358643 | 1887 |
| Brager, Gull | Osage | pocket cash register | 580157 | 1897 |
| Brager, Gull | Osage | sad iron | 831410 | 1906 |
| Brager, Gull | Osage | cash register, indicator, and adding machine | 583192 | 1897 |
| Bowman, Henry | Osage | heating stove | 190813 | 1877 |
| Bowman, Henry | Osage | heating stove | 190814 | 1877 |
| Champion, John | Osage | hair curler | 1233185 | 1917 |
| Clausen, Fred | Stacyville | scouring box | 24669 | 1895 |
| Clausen, Hans | Stacyville | scouring box | 24669 | 1895 |
| Closz, Charles | Saint Ansgar | grain separating screen | 434246 | 1890 |
| Closz, Charles | Saint Ansgar | grain separating screen | 434247 | 1890 |
| Closz, Charles | Saint Ansgar | grain separating screen | 434248 | 1890 |
| Closz, Charles | Saint Ansgar | grain separator | 434249 | 1890 |
| Closz, Charles | Saint Ansgar | grain separator | 455997 | 1891 |
| Closz, Charles | Saint Ansgar | grain separating screen | 455998 | 1891 |
| Closz, Charles | Saint Ansgar | grain cleaning and separating machine | 466125 | 1891 |
| Closz, Charles | Saint Ansgar | oat screen | 471071 | 1892 |
| Closz, Charles | Saint Ansgar | corn separating screen | 471072 | 1892 |
| Closz, Charles | Saint Ansgar | grain screen | 471073 | 1892 |
| Closz, Charles | Saint Ansgar | grain separating screen | 494290 | 1893 |
| Closz, Jacob | Saint Ansgar | oat screen | 471071 | 1892 |
| Closz, Jacob | Saint Ansgar | corn separating screen | 471072 | 1892 |
| Closz, Jacob | Saint Ansgar | grain screen | 471073 | 1892 |
| Closz, Jacob | Saint Ansgar | grain separating screen | 494290 | 1893 |
| Closz, Jacob | Saint Ansgar | pneumatic tube testing and tire carrying device | 1148287 | 1915 |
| Closz, Jacob | Saint Ansgar | combined air regulator and deflector | 1341494 | 1920 |
| Closz, Jacob | Saint Ansgar | air concentrator | 1377807 | 1921 |
| Colby, Clarence | Osage | heating stove | 190813 | 1877 |
| Colby, Clarence | Osage | heating stove | 190814 | 1877 |
| Conner, Hugh | Osage | foot feed attachment for sewing machines | 2130266 | 1938 |
| Crouch, George | Saint Ansgar | impact fire etinguisher | 2911049 | 1959 |
| Culbertson, charles | Carpenter | attachment for vehicles | 996749 | 1911 |
| Dahl, Olaus | Mona | thill coupling | 440472 | 1890 |
| Demuth, John | McIntire | basket reinforcement | 1305074 | 1919 |
| Donaldson, Erasmus | Stacyville | harvester rake | 149106 | 1874 |
| Doolittle, Freeman | McIntire | collar pad | 638008 | 1899 |
| Downing, Burton | Mitchell | horse hay rake | 143278 | 1873 |
| Downing, Burton | Mitchell | improvement in hose hay rakes | 5704 | 1873 |
| Dudley, J. | Mitchell | portable calendar | 35143 | 1862 |
| Eastman, Peter | Osage | clip for hitching-straps | 304188 | 1884 |
| Eirich, Carl | Otranto Station | attachment for cultivators | 1091403 | 1914 |
| Elder, Cornelius | Osage | cream transportation tank | 285348 | 1883 |
| Elder, Cornelius | Osage | cream transportation tank | 10643 | 1885 |
| Enfield, William | Osage | automatic gate for railway crossings | 1450797 | 1923 |
| Enfield, William | Osage | warning signal | 1515017 | 1924 |
| Falk, Frank | Stacyville | lever mechanism | 874175 | 1907 |
| Falk, Frank | Stacyville | gang plow | 900919 | 1908 |
| Falk, Frank | Stacyville | wagon box construction | 920299 | 1909 |
| Falk, Frank | Stacyville | cream separator | 1120464 | 1914 |
| Falk, Frank | Stacyville | latching device | 1591666 | 1926 |
| Falk, Frank | Stacyville | hood latch | 1905554 | 1933 |
| Falk, Frank | Stacyville | hood latch | 1905555 | 1933 |
| Falk, Frank | Stacyville | hood latch | 1933898 | 1933 |
| Falk, Frank | Stacyville | combined window adjuster and lock for doors | 2086707 | 1937 |
| Forbes, Frank | Saint Ansgar | pitman connection | 398717 | 1889 |
| Forde, Magne | Osage | badge | 33322 | 1900 |
| Franklin, Simeon | Osage | heating stove | 190813 | 1877 |
| Franklin, Simeon | Osage | heating stove | 190814 | 1877 |
| Frazee, Frank | Osage | automatic stop for sound reproducing apparatus | 1409539 | 1922 |
| Frazee, George | West Mitchell | printing press | 201770 | 1878 |
| Gardner, Clarke | Osage | paper clip | 788099 | 1905 |
| Gardner, Clark | Osage | clip | 828398 | 1906 |
| Gardner, Clark | Osage | combined potted bulb package and jardiniere | 1493152 | 1924 |
| Gardner, Clark | Osage | potted bulb package | 1606523 | 1926 |
| Gardner, Clark | Osage | plant package watering device | 2033627 | 1936 |
| Gardner, Clark | Osage | watering tube device for packaged plants, shrubs, etc. | 2039986 | 1936 |
| Gardner, Clark | Osage | semipotted plant package | 2079116 | 1937 |
| Gardner, Clark | Osage | plant pack | 2340373 | 1944 |
| Gardner, Clark | Osage | plant shipping container | 2341374 | 1944 |
| Gardner, Clark | Osage | toy | 2402390 | 1946 |
| Gilbertson, Gilbert | West Mitchell | pulverizing attachment for cultivators | 604313 | 1898 |
| Gilbertson, Gilbert | Saint Ansgar | seeder and planter | 833597 | 1906 |
| Gilbertson, Oliver | Osage | rein holder | 1418147 | 1922 |
| Ginsterblum, Kenneth | Osage | wheel chair steering and drive control | 2567065 | 1951 |
| Goddard, Charles | Saint Ansgar | harvester reel | 142389 | 1873 |
| Goddard, Charles | Saint Ansgar | grain binding harvester | 135985 | 1873 |
| Goddard, Charles | West Mitchell | plow | 232345 | 1880 |
| Goddard, Charles | West Mitchell | roller plow | 251357 | 1881 |
| Goddard, Charles | Mitchell | thrashing maching and engine therefor | 531995 | 1895 |
| Goplerud, Clifford | Osage | warning signal | 1515017 | 1924 |
| Graves, Charles | Osage | boot and shoe shank and toe laster | 118527 | 1871 |
| Graves, William | Saint Ansgar | bag holder | 608853 | 1898 |
| Graves, William | Saint Ansgar | belt shifter | 621655 | 1899 |
| Gray, Adam | Osage | harvesters | 157127 | 1874 |
| Gray, Adam | Osage | cancaves for thrashing machines | 156701 | 1874 |
| Gunderson, George | Saint Ansgar | portable scoop | 1813159 | 1931 |
| Haight, Orrin | Osage | bedclothes clamp | 426011 | 1890 |
| Hall, Elbert | Mitchell | book or manuscript holder | 593935 | 1897 |
| Hansen, Thorvald | Saint Ansgar | fence tool | 1855960 | 1932 |
| Hartogh, John | Douglas township | lifting device | 834381 | 1906 |
| Heard, Kenneth | Saint Ansgar | mail box construction | 2872103 | 1959 |
| Hill, Bradbury | Osage | copy holder | 753490 | 1904 |
| Hill, Bradbury | Osage | copy holder | 806344 | 1905 |
| Hoel, Arthur | Orchard | tool supporting attachment to motor driven vehicles | 1580043 | 1926 |
| Inward, Charles | Osage | latch | 288639 | 1883 |
| Iverson, Anton | Osage | chain connector | 1386273 | 1921 |
| Jerald, Daniel | Osage | self heating iron | 873942 | 1907 |
| Johnson, Christian | Mona | gage for railway ties | 647840 | 1900 |
| Juhl, Chris | Osage | syringe | 1831668 | 1931 |
| Kelly, Henry | Osage | well drilling machines | 158113 | 1874 |
| Kelly, Henry | Osage | earth boring apparatus | 176008 | 1876 |
| Kelly, Henry | Osage | harvester | 202269 | 1878 |
| Kelly, Henry | Osage | pawl and ratchet for chain pumps | 324329 | 1885 |
| Kelly, J. | Osage | earth boring apparatus | 176008 | 1876 |
| Kelly, Joseph | Osage | pawl and ratchet for chain pumps | 324329 | 1885 |
| Kennedy, Guy | Osage | air tight door | 458465 | 1891 |
| Kindschuh, Jacob | Little Cedar | plate lifter | 659678 | 1900 |
| Krub, Louis | Saint Ansgar | weeder | 598251 | 1898 |
| Kruger, Fred | Little Cedar | shield for pneumatic tires | 928986 | 1909 |
| Kruger, Fred | Little Cedar | detachable top and seat for school wagons | 1409555 | 1922 |
| Larsen, Gustav | Stacyville | cable hanger | 976470 | 1910 |
| Larsen, Theodore | Saint Ansgar | well drilling apparatus | 232191 | 1880 |
| Larson, Lars | Osage | copy holder | 806344 | 1905 |
| Lezott, Henry | Osage | harrow | 92849 | 1869 |
| Lincke, Emil | Osage | push pull type furniture handle | 2697244 | 1954 |
| Lomen, Anton | Carpenter | hay loader | 1096043 | 1914 |
| Long, James | Osage | harrow, drill, grass seeder, and roller combined | 38495 | 1863 |
| Long, James | Osage | combined seeder, cultivator, harrow and crusher | 180609 | 1876 |
| Long, Joseph | Osage | combined seeder, cultivator and roller | 46480 | 1865 |
| Long, Joseph | Osage | combined broadcast seeder, cultivator and roller | 75936 | 1868 |
| Lottridge, William | Osage | grain binder | 181954 | 1876 |
| Lottridge,William | Osage | harvester | 181953 | 1876 |
| Lottridge, William | Osage | grain binder | 211207 | 1878 |
| Lottridge, William | Osage | grain binder | 254879 | 1882 |
| Lottridge, william | Osage | grain binder | 338091 | 1886 |
| Lyons, Daniel | Carpenter | foot guard for rails | 1120069 | 1914 |
| McCarty, James | Osage | garden implement attachment | 1589196 | 1926 |
| McMillan, Duncan | Osage | line loop | 141804 | 1873 |
| Meguire, Benjamin | Osage | road grader | 206120 | 1878 |
| Mitchell, James | Osage | locomotive cow catcher | 18348 | 1857 |
| Moe, Lewis | Saint Ansgar | grave guard | 538788 | 1895 |
| Moore, Rinaldo | Mitchell | hoe | 1256352 | 1918 |
| Moore,Rinaldo | Mitchell | hoe | 1360775 | 1920 |
| Morgan, J. | Osage | well drilling machines | 158113 | 1874 |
| Mosher, George | Jenkins township | combination power transmission device | 1624145 | 1927 |
| Nichols, George | Osage | vehicle | 152673 | 1874 |
| Nichols, Martin | Osage | vehicle | 144473 | 1873 |
| Nichols, Martin | Osage | vehicles | 6120 | 1874 |
| Nichols, Martin | Osage | vehicles | 6119 | 1874 |
| Nichols, Martin | Osage | vehicles | 6000 | 1874 |
| Nichols, Martin | Osage | passenger vehicle | 210956 | 1878 |
| Olson, Arthur | Osage | foot feed attachment for sewing machines | 2130266 | 1938 |
| Olson, Thomas | Osage | chain connector | 1386273 | 1921 |
| Paulson, Eleck | Osage | tank heater and feed cooker | 695943 | 1902 |
| Paulson, Eleck | Osage | rural mail delivery cabinet | 853318 | 1907 |
| Petersen, Valdemar | Saint Ansgar | wire fence fastener | 1422127 | 1922 |
| Priem, Otto | Carpenter | adjustabale hanger | 1107110 | 1914 |
| Rushlow, Romeo | West Mitchell | machine for handling yarn in the dye vat | 279884 | 1883 |
| Schnoor, John | Stacyville | window and curtain for buggy tops | 630991 | 1899 |
| Scott, Charles | McIntire | tank valve | 602525 | 1898 |
| Shambaugh, Thomas | Osage | copy holder | 806344 | 1905 |
| Shotwell, T. | Osage | car couplings | 153853 | 1874 |
| Smith, Seamer | Osage | means for connecting and disconnecting reciprocating engines | 905011 | 1908 |
| Starr, Herman | Osage | motor driven vehicle | 1297747 | 1919 |
| Stuart, Lawrence | Orchard | attachment for corn planters | 1274954 | 1918 |
| Thompson, Roy | Otranto Station | attachment for cultivators | 1091403 | 1914 |
| Tollefson, Henry | Saint Ansgar | sieve holder | 564855 | 1896 |
| Tollefson, Jefferson | Saint Ansgar | belt holder for thrashing machines | 306555 | 1884 |
| Tollefson, Jefferson | Saint Ansgar | pocket knife | 464681 | 1891 |
| Townsend, Merlyn | Stacyville | milk straining device | 2874843 | 1959 |
| White, Frederic | Stacyville | harvester | 163124 | 1875 |
| Whitney, Newell | Osage | grain binders | 155781 | 1874 |
| Whitney, Pascal | Osage | grain binders | 155781 | 1874 |
| Winnek, Frederick | Osage | harrow tooth | 229788 | 1880 |