Samuel Hopkins, of Philadelphia, Pennsylvania [Pittsford, Vermont], received Patent No. 1 on July 31, 1790, for an improvement "in the making Pot ash and Pearl ash by a new Apparatus and Process." The patent was signed by President George Washington, Attorney General Edmund Randolph, and Secretary of State Thomas Jefferson. Only two other patents were granted that year, one for a new candle-making process and the other the flour-milling machinery of Oliver Evans.
2007-02-26 06:20:08
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answer #1
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answered by endrshadow 5
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On July 31, 1790 Samuel Hopkins was issued the first patent for a process of making potash, an ingredient used in fertilizer. The patent was signed by President George Washington. Hopkins was born in Vermont, but was living in Philadelphia, PA when the patent was granted.
The first patent, as well as the more than 6 million patents issued since then, can be seen on the Department of Commerce's U.S. Patent and Trademark Office website at www.uspto.gov. The original document is in the collections of the Chicago Historical Society.
2007-02-26 14:28:58
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answer #2
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answered by MikeDot3s 5
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I figured as much. Alexander Graham Bell! NOT! Try reading the school book, it's in there. Quit trying to take the easy way out.
2007-02-26 14:17:19
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answer #3
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answered by Anonymous
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In the US, it was Eli Whitney for the cotton gin.
2007-02-26 14:18:40
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answer #4
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answered by Anonymous
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