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| Patents Granted on 1857-09-22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 18,250 | Sep. 22, 1857 | J.K. Creighton, A.C. Smith | Machine for filing and setting saws | saw sharpening machines | |
| 18,255 | Sep. 22, 1857 | D.C. Turner | Rotary Steam Engine | rotary steam engines | |
| 18,265 | Sep. 22, 1857 | S. Darling, J.W. Strange | Pencil Sharpener | draftsman | |
| 18,266 | Sep. 22, 1857 | H.D. Blake | Improvement in Hand-Wrenches | self-adjust wrenches | |
| 18,268 | Sep. 22, 1857 | J. Humphrey | Lathe for the manufacture of clothes pins, &c. | wood lathes | |