Samuel Hopkins (1743-1818)
The holder of the first U.S. patent, signed by George Washington, lived here. On July 31, 1790, Hopkins received a patent for an improvement in making potash, a major industrial chemical. In succeeding centuries, the U.S. Government issued millions of patents.
Digital Commonwealth, Boston Public LibraryDavid Rumsey Map Collection, Stanford LibrariesDigital Commonwealth, Boston Public LibraryDigital Commonwealth, Boston Public LibraryDavid Rumsey Map Collection, Stanford Libraries
Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov
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