| All Patents of Type: manufacturing potash |
Patents 1 -
15
of 24
      |
| Number | Date | Patentee | Title | Type |
| 1X | Jul. 31, 1790 | S. Hopkins | Making Pot And Pearl Ashes | manufacturing potash |
| 61X | Apr. 29, 1793 | E. Ryan | Furnace for pot and pearl ashes | manufacturing potash |
| 123X | Nov. 16, 1796 | E. Ryan | Improvement in manufacturing pot ash | manufacturing potash |
| 131X | Nov. 17, 1796 | W. Frobisher | Manufacturing pot ash | manufacturing potash |
| 342X | Sep. 19, 1801 | T. Power | Manufacturing potash | manufacturing potash |
| 1,599X | Oct. 29, 1811 | S. Witherill, Jr. | Mode of washing white lead | manufacturing potash |
| 1,600X | Oct. 29, 1811 | S. Witherill, Jr. | Setting the beds or stacks (by admission of air) in making white lead | manufacturing potash |
| 1,601X | Nov. 01, 1811 | S. Witherill, Jr. | Screening and separating in water the corroded parts of lead from the uncorroded parts in the process of making white lead | manufacturing potash |
| 1,602X | Nov. 01, 1811 | S. Witherill, Jr. | Machine for separating the oxidated from the metallic lead in the process of manufacturing red lead and of the manner of using the machine | manufacturing potash |
| 2,022X | Nov. 08, 1813 | A.J. Hamilton | Manufacturing white lead and flake whate | manufacturing potash |
| 2,120X | May 05, 1814 | E. DeButts | Making white lead | manufacturing potash |
| 2,179X | Aug. 15, 1814 | T. Evans, J. Welsh | Manufacturing white lead | manufacturing potash |
| 2,860X | Oct. 13, 1817 | G.F. Hagner | Improvement in manufacturing white lead | manufacturing potash |
| 2,932X | Mar. 28, 1818 | E. Clark | Making white lead | manufacturing potash |
| 5,323X | Jan. 02, 1829 | J. Burney | Mode of preparing white lead without grinding | manufacturing potash |
