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| Patents for Smith, Witty & Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-181,003,373 | Aug. 31, 1810 | R. Witty | Rotative steam engines on a new principle, simpler, cheaper, and less liable to be out of repair than those now in use | steam engines | |
| GB-181,103,497 | Oct. 30, 1811 | R. Witty | Construction of steam engines | steam engines | |
| GB-181,303,707 | Jun. 05, 1813 | R. Witty | Improvements in or on Steam Engines, and Tools Useful in Making Certain Parts of the Same | steam engines | |