The ‘Hanger Limb’ received a U.S. patent
On Feb. 4, 1871, the ‘Hanger Limb’ received a U.S. patent. James Edward Hanger was the first amputee…
Dr William Thornton was appointed as first clerk at the Department of State, giving him sole responsibility over patents
On Jun. 1, 1802, the U.S. Secretary of State appointed Dr. William Thornton as first clerk at the…
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The first U.S. patent was signed by President George Washington
On Jul. 31, 1790, Samuel Hopkins was issued the first patent under the new U.S. patent statute signed…