Samuel Hopkins (1743-1818)

Samuel Hopkins (1743-1818) is a Pennsylvania historical marker in Philadelphia, Philadelphia County, dedicated 2000.

Philadelphia County · dedicated 2000 · 119 Arch St., Philadelphia

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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.

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what this marker records spans 1777 to 1789, overlapping William Gabby's years here

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Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov

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