The first official U.S. patent was awarded to Samuel Hopkins of Vermont in July 1790. The patent was for an improvement "in the making of Pot ash and Pearl ash by a new Apparatus and Process." Potash was used in soap and fertilizer. Pearlash was used in baking. The process produced carbon dioxide gas in dough, used in the first "quick breads."
More Famous Firsts
More Famous Firsts
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