Samuel Hopkins (1743 - 1818)
Posted by: 
unimoggers
N 39° 57.111 W 075° 08.550
18S E 487827 N 4422422
Hopkins had petitioned for a patent on an improvement "in the making of Pot ash and Pearl ash by a new Apparatus and Process."
Waymark Code: WM1MDF
Location: Pennsylvania, United States
Date Posted: 06/01/2007
Views: 54
Marker Text:
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.
Marker Name: Samuel Hopkins
County: Philadelphia
Date Dedicated: 07/29/2000
Marker Type: City
Location: 2nd & Arch Streets, Philadelphia
Category: Business & Industry, George Washington, Government & Politics, Invention
Website: [Web Link]
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