| Patents for John Stephens |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 1,517X | May 21, 1811 | J. Stephens | Steam engine for propelling boats | steam engines |
| 2,454X | Mar. 14, 1816 | J. Stephens | Sliders for steam engines | steam engines |
| 2,457X | Mar. 16, 1816 | J. Stephens | Steam engines | steam engines |
| 3,884X | Jun. 08, 1824 | J. Stephens | Construction of rail road | |
| 3,958X | Oct. 23, 1824 | J. Stephens | Mode of constructing rail roads | |
| 8,715X | Mar. 25, 1835 | M. Rich | Lever sawmill dog | sawmills |
| 8,725X | Mar. 27, 1835 | M. Rich | Dog gauge saw mill | sawmill dogs |
| 395,840 | Jan. 08, 1889 | A. Lang | Saw-mill feed mechanism | sawmill feed works |
