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| Patents Granted on 1822-05-17 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,525X | May 17, 1822 | S. Davidson | Machine for breaking and swingling flax | flax and hemp machines | |
| 3,526X | May 17, 1822 | D.H. Mason | Making metallic plates for engraving and printing | printer | |
| 3,527X | May 17, 1822 | J. Thomas | Blocks and wedges for raising vessels and for other uses in ship building | blocks and wedges | |