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The hot comb was an invention developed in France as a way for women with coarse curly hair to achieve a fine straight look traditionally modeled by historical Egyptian women. [44] However, it was Annie Malone who first patented this tool, while her protégé and former worker, Madam C. J. Walker, widened the teeth. [45]
Women inventors have been historically rare in some geographic regions. For example, in the UK, only 33 of 4090 patents (less than 1%) issued between 1617 and 1816 named a female inventor. [1] In the US, in 1954, only 1.5% of patents named a woman, compared with 10.9% in 2002. [1]
GB Patent 604 (1715), Cleaning and Curing Indian Corn, applied for by Sybilla Masters but granted to her husband Thomas Masters because women could not be legally recognised. Sybilla Righton Masters (c. 1676 – 23 August 1720) [ 1 ] was an American inventor.
Margaret E. Knight was born in York, Maine on February 14, 1838, to Hannah Teal and James Knight. [4] As a little girl, “Mattie,” as her parents and friends nicknamed her, preferred to play with woodworking tools instead of dolls, stating that “the only things [she] wanted were a jack knife, a gimlet, and pieces of wood.” [5] She was known as a child for her kites and sleds.
One of the first African-American women to receive a United States patent Sarah Elisabeth Goode (1855 – April 8, 1905) was an American entrepreneur and inventor. She was one of the first known African American women to receive a United States patent , which she received in 1885 for her cabinet bed.
Wilcox's patent for a car heater, 1893. Margaret A. Wilcox (1838 – March 30, 1912) was an American mechanical engineer and inventor known for her late-nineteenth-century discoveries. The automotive heating system established the foundation for modern vehicle temperature control.
The 100 known most prolific inventors based on worldwide utility patents are shown in the following table. While in many cases this is the number of utility patents granted by the United States Patent and Trademark Office, it may include utility patents granted by other countries, as noted by the source references for an inventor.
In the nineteenth century, woman made up just 1% of all inventors who received United States patents. Unfortunately, little is known about most of these women, but Tracy is an exception. Tracy received much notoriety and fame for her innovations. So much so that many of her inventions received extensive public acclaim in Chicago newspapers.
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