| Smith | William | wheel current | 12606 | Cedar Rapids | 1855 |
| Kramer | A. | arrangement of parts in rotary planers | 30903 | Marion | 1860 |
| Gordon | J. | mole plow | 31313 | Lisbon | 1861 |
| Hammer | J. | mole plow | 31313 | Lisbon | 1861 |
| Tomlinson | Joseph | suspension bridge | 32440 | Putnam | 1861 |
| Seymour | George | corn shelling and grinding machine | 32898 | Cedar Rapids | 1861 |
| Reece | B. | beehive | 35892 | Marion | 1862 |
| Crowley | J. | sugar evaporator | 36076 | Marion | 1862 |
| Johnson | L. | sugar evaporator | 36076 | Marion | 1862 |
| Thompson | G. | sugar juice evaporator | 36179 | Marion | 1862 |
| Smith | George | beehive | 39451 | Marion Township, Linn County | 1863 |
| Kramer | A. | beehive | 39451 | Marion Township, Linn County | 1863 |
| Vosburgh | Nathan | beehive | 39451 | Marion Township, Linn County | 1863 |
| Winter | William | beehive | 39451 | Marion Township, Linn County | 1863 |
| Bates | William | broom | 39874 | Cedar Rapids | 1863 |
| Bates | William | seeding machine | 46626 | Center Point | 1865 |
| Evan | Turner | hand spinning machine | 47285 | Paris | 1865 |
| Gordon | Ebenezer | washing machine | 48550 | Cedar Rapids | 1865 |
| Berkeley | William | method of turning bridges | 55230 | Cedar Rapids | 1866 |
| Berkeley | William | method of turning bridges | 55231 | Cedar Rapids | 1866 |
| Berkeley | William | tool for adjusting lathes to turn tapering shafts | 56164 | Cedar Rapids | 1866 |
| Elliott | B. | grape trellis | 56541 | Cedar Rapids | 1866 |
| Kynett | H. | gang plow | 63260 | Lisbon | 1867 |
| Turner | Lafayette | bag holder | 66424 | Cedar Rapids | 1867 |
| Barnum | G. | ointment for horses | 67627 | Marion | 1867 |
| Winton | W. | hand plow | 81857 | Marion | 1868 |
| Bollinger | W. | carriage axle | 82483 | Cedar Rapids | 1868 |
| Brown | F. | shutter worker | 93408 | Springville | 1869 |
| Berkeley | William | sled runner | 94699 | Cedar Rapids | 1869 |
| Berkeley | William | horse power | 96192 | Cedar Rapids | 1869 |
| Paddington | George | harrow | 98100 | Springville | 1869 |
| Chattin | James | scaffold bracket | 98559 | Marion | 1870 |
| O'Brien | James | bridle rosette | 108725 | Cedar Rapids | 1870 |
| Bryan | Hugh | electric telegraph sounder, relay, & c. | 113976 | Cedar Rapids | 1871 |
| Shaver | Isaac | oven | 116762 | Cedar Rapids | 1871 |
| Sweet | John | steam engine balance valve | 119427 | Cedar Rapids | 1871 |
| Kynett | Henry | cultivator | 117547 | Lisbon | 1871 |
| Cottle | Lute | baggage check | 122994 | Cedar Rapids | 1872 |
| Cottle | Lute | baggage check | 134257 | Cedar Rapids | 1872 |
| Stuart | Addison | lock key | 134325 | Cedar Rapids | 1872 |
| St. Clair | A. | camera focusing attachment | 134402 | Cedar Rapids | 1872 |
| McAlvin | John | baggage check | 126559 | Cedar Rapids | 1872 |
| Cottle | Lute | loading cattle upon cars | 127961 | Cedar Rapids | 1872 |
| Kenderdine | Theodore | combined can opener and knife or fork | 142109 | Lisbon | 1873 |
| Hart | George | shoe fastening | 143148 | Buffalo Township, Linn County | 1873 |
| Bettesworth | George | numerical filing case | 144593 | Cedar Rapids | 1873 |
| Delano | Charles | grape and flower picker | 144837 | Cedar Rapids | 1873 |
| Stiles | Peter | draft equalizer | 145474 | Cedar Rapids | 1873 |
| Collins | Owen | draft equalizer | 145474 | Cedar Rapids | 1873 |
| Deal | Daniel | car couplings | 157093 | Toddville | 1874 |
| Webber | Benjamin | car coupling | 157253 | Lisbon | 1874 |
| Delano | Charles | thill coupling | 150300 | Cedar Rapids | 1874 |
| Olds | Harmon | furniture caster | 150703 | Cedar Rapids | 1874 |
| May | John | railway rail | 152502 | Cedar Rapids | 1874 |
| Reeve | Mark | water feeder for steam boilers | 146145 | Paralta | 1874 |
| Burnside | George | vehicle tongue support | 164969 | Prairieburg | 1875 |
| White | Isaac | ticket case | 167593 | Cedar Rapids | 1875 |
| Leach | Edwin | wheel cultivator | 159689 | Cedar Rapids | 1875 |
| Leach | Edwin | riding harrow | 159690 | Cedar Rapids | 1875 |
| Henry | Victor | sun protector for car horses | 160521 | Cedar Rapids | 1875 |
| May | John | windmill | 168574 | Cedar Rapids | 1875 |
| Noyes | LaVerne | farm gate | 161817 | Springville | 1875 |
| Safley | John | grain and seed sieve | 176693 | Mount Vernon | 1876 |
| Brundige | Judson | vehicle seat lock | 177798 | Cedar Rapids | 1876 |
| Hall | Robert | vehicle seat lock | 177798 | Cedar Rapids | 1876 |
| Shaver | Isaac | cracker and lozenge machine | 183780 | Cedar Rapids | 1876 |
| Kline | Peter | harvester | 172034 | Lisbon | 1876 |
| Kynett | Henry | cultivator | 192922 | Lisbon | 1877 |
| St. John | Spencer | iron fence post | 188435 | Cedar Rapids | 1877 |
| Ward | Moses | cultivator, weeder, and marker | 194504 | Cedar Rapids | 1877 |
| Carvers | Henry | sulky plow | 188856 | Marion | 1877 |
| Peet | Wilbur | ditcher | 189647 | Viola | 1877 |
| Anthony | James | waterproof cellar bottom | 195471 | Cedar Rapids | 1877 |
| Pope | Thomas | fence post | 195533 | Waubeck | 1877 |
| St. John | Herbert | fence post | 195671 | Cedar Rapids | 1877 |
| Keagle | Levi | fishing and wharf lamp | 196613 | Center Point | 1877 |
| Wilson | Leonidas | fishing and wharf lamp | 196613 | Center Point | 1877 |
