On May 5, 1809, Mary Kies became the first woman to receive a patent in the United States. (It was for her technique of weaving straw with silk.) Of course, women inventors existed before this time, but the property laws in many states made it illegal for women to own property on their own. This led some women to apply for patents in their husbands’ names if they decided to apply at all.
Only about 10% of U.S. patent holders are women, although women account for half of doctoral degrees in science and engineering. This disparity is due in part to the the U.S. Patent and Trademark Office being more likely to reject patents with women as sole applicants. Further, when patents sought by women are approved, they are more likely to have added parameters that made the description of the patents far more detailed. These revisions tend to lower the scope of the patent, making it weaker and less valuable.
It’s no secret that women face more scrutiny in STEM fields, which is why the women on this list have more to be congratulated on than their inventions. They are pioneers in their fields and have often overcome tougher hurdles based on their sex than their male counterparts.
To compile a list of 50 things people never knew were invented by women, 24/7 Tempo reviewed over a dozen news reports and historical articles on inventions, both by men and women, that changed history. These are the most influential women in science.
Click here to read about 50 inventions you never knew were invented by women
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