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| Patents Granted on 1844-05-30 | |||||
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| Number | Date | Patentee | Title | Type | |
| XC-193 | May 30, 1844 | W. McCall | Mode by which power, to be derived from the use of the wheel and screw, may be applied to any kind of machinery | industrial machine mechanisms | |
| 3,606 | May 30, 1844 | P. Von Schmidt | Submerged Propeller | nautical propulsion apparatus | |
| 3,609 | May 30, 1844 | A. Morgan | Metal Drill | drill presses | |