| Fractional Patents |
Patents 16 -
30
of 91
      |
| Number | Date | Patentee | Title | Type |
| FX-3,766 | Oct. 14, 1823 | J. Nash | Plough | plows |
| FX-4,172 | Aug. 23, 1825 | S. Abbot, J. Prentis | Mode of manufacturing window and bed curtains | curtains |
| FX-4,273 | Nov. 05, 1825 | J.B. Flagg, R. Howard | Thrashing machine | threshers and thrashers |
| FX-4,749 | May 14, 1827 | E.A. Lester | Oscillating Steam Engine | oscillating steam engines |
| FX-5,212 | Aug. 29, 1828 | U. Brown | Improvement in steam engines, &c. | steam engines |
| FX-5,497 | Jun. 11, 1829 | J. Barnett, A. Barnett | Cooking Stove | stoves |
| FX-5,538 | Jun. 17, 1829 | L. Van Voeson (Van Hoosen), Jr. | Felt of Wool Without Spinning or Weaving | textile machines |
| FX-5,548 | Jun. 29, 1829 | D. Taylor, N. Peck | Mode of Manufacturing Cloth Without Spinning or Weaving, and Without Crossing the Wool | textile machines |
| FX-5,702 | Nov. 07, 1829 | C. Hall | Making fence of wire or cords or twine, and in making seines or nets of wire | fence making machines |
| FX-6,145 | Oct. 01, 1830 | R. McCormick | Hydraulic machinery | piston pumps |
| FX-6,157 | Oct. 01, 1830 | A.B. Quimby | Preventing explosion of steamboat boilers | steam safety valves |
| FX-6,346 | Jan. 21, 1831 | J.W. Dart, W. Webster | Propelling mills | industrial machine pulleys and belt drive mechanisms |
| FX-6,368 | Feb. 08, 1831 | J.C. Strode | Water wheel | water wheels |
| FX-6,611 | Jun. 30, 1831 | A. McGrew | Safety railway car | |
| FX-6,715 | Aug. 30, 1831 | J. Stimpson | Turning Short Curves | track and switches |
