From planes to lightbulbs, innovative ideas flourish in the US

From planes to lightbulbs, innovative ideas flourish in the US

The Evolution of U.S. Patents and Innovation On July 31, 1790, President George Washington put his signature on a significant document. This brief piece of parchment acknowledged Samuel Hopkins from Philadelphia for his “discovering improvements hitherto unknown or unused” in potash production, a chemical beneficial in fertilizers. The agreement granted Hopkins the exclusive right to […]