The journal
Open the journal →The conversation starts in the journal — be the first to post.
About Samuel Hopkins
Samuel Hopkins was an American inventor from Philadelphia, Pennsylvania, On July 31, 1790, he was granted the first U.S. patent, under the new U.S. patent statute just signed into law by President Washington on April 10, 1790. Hopkins had petitioned for a patent on an improvement "in the making of Potash and Pearlash by a new Apparatus and Process."
Everything about Samuel Hopkins →- Occupation
- engineer, inventor
- Born
- December 9, 1743
- Died
- 1818