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| Patents for Charles F. Sleeper | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 60,114 | Dec. 04, 1866 | M.M. Ammidown | Improvement in drilling machines | |
 | 88,236 | Mar. 23, 1869 | C.H. Underwood | Improvement in miter-boxes | |
 | 179,460 | Jul. 04, 1876 | E.F. Meany | Improvement in bottle-holders | |
| 186,783 | Jan. 30, 1877 | H.G. Ashton | Improvement in Safety-Valve Attachments to Utilize the Escape-Steam | ||
 | 339,886 | Apr. 13, 1886 | G.W. Hill | Counter-balance for cutter-heads | |
 | 401,894 | Apr. 23, 1889 | I.G. Marston | Table-top for circular saws | |