| Patents Granted on 1818-05-?? |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 2,950X | May 01, 1818 | A. Thayer | Water wheel | water wheels |
| 2,951X | May 01, 1818 | A. Thayer | New mode of applying water as a power | |
| 2,952X | May 04, 1818 | J. Cullen | Medicated liquid magnesia | |
| GB-181,804,256 | May 07, 1818 | T. Jones, C. Plimley | Improvement to blast engines and steam engines | steam engines |
| 2,953X | May 26, 1818 | G. Davis | Plough | plows |
| 2,954X | May 26, 1818 | G. Davis | Water tew iron | |
| 2,955X | May 28, 1818 | J. Richards | Manufacturing lead | |
| 2,956X | May 28, 1818 | M. Isaacs | Wind wheel | |
| 2,957X | May 28, 1818 | E.J. Ellicott | Manufacturing into plates and sheets | |
| 2,958X | May 28, 1818 | A. Ramage | Printing press | printing presses |
| 2,959X | May 28, 1818 | L. North | Metal Hair Combs | hair grooming tools |
| NX-181,805,281 | May 28, 1818 | I. Shepherd | Making Butter | butter |
| NX-181,805,282 | May 28, 1818 | T.T. Storm | Churn | churns |
