On July 31, 1790, the United States issued its first patent—to Samuel Hopkins—for a new method of making potash. Since then, the U.S. has granted over 12 million patents, with this historic document bearing the signatures of President George Washington, Attorney General Edmund Randolph, and Secretary of State Thomas Jefferson. This first patent was a practical implementation of the Constitutional mandate “to promote the progress of science and useful arts.” By securing legal protection for an inventor’s ideas, the new government transformed abstract thoughts into valuable, protected property, providing an economic incentive for tinkerers and scientists.
Hopkins’ process for manufacturing potash—a vital ingredient in soap, glass, and fertilizer—helped drive early American agricultural productivity and domestic industrial capacity. Washington’s signature validated the idea that a nation’s true strength lay not just in its land or military, but in the creative spark of its people. This administrative milestone established an enduring tradition of innovation, ensuring that generations of inventors would keep turning ideas into engines of national growth.
