| Patents for Pratt, Whitney & Co. |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 33,126 | Aug. 20, 1861 | M. Stannard | Improvement in rotary pumps | |
| 40,082 | Sep. 22, 1863 | F.A. Pratt | Improvement in attaching pumps to bungs of barrels | |
| 40,276 | Oct. 13, 1863 | F.A. Pratt | Improvement in apparatus for attaching pumps to bungs of barrels | |
| 46,152 | Jan. 31, 1865 | D. Slate | Improvement in turning-lathes | metal lathes |
| 89,177 | Apr. 20, 1869 | D. Slate | Improved Shipping Apparatus for Metal Planers | metal planers |
| D3,611 | Aug. 10, 1869 | F.A. Pratt | Design for an upright drill | drill presses |
| 100,064 | Feb. 22, 1870 | F.A. Pratt | Improvement in friction-clutches | industrial machine clutches |
| 155,051 | Sep. 15, 1874 | R.H. Thurston | Torsion measuring apparatus | testing machines |
| 164,391 | Jun. 15, 1875 | F.A. Pratt | Improvement in metal-shearing machines | |
| 164,392 | Jun. 15, 1875 | F.A. Pratt | Improvement in drop-hammers | |
| 167,165 | Aug. 31, 1875 | J.J. Grant | Improvement in die-stocks | tap wrenches and die stocks |
| 168,349 | Oct. 05, 1875 | J.C. Sherman | Improvement in screw-cutting dies | taps and dies |
| 168,412 | Oct. 05, 1875 | F.A. Pratt | Improvement in cranes | cranes |
| 170,949 | Dec. 14, 1875 | J.J. Grant | Improvement in screw-cutting die holders | tap wrenches and die stocks |
| 173,780 | Feb. 22, 1876 | J.J. Grant | Improvement in screw-cutting dies | taps and dies |
