Too Few Women Get to Invent—That’s A Problem For Women’s Health


MacArthur Genius and MIT professor Linda Griffith has built an epic career as a scientist and inventor, including growing a human ear on a mouse. She now spends her days unpacking the biological mechanisms underlying endometriosis, a condition in which uterus-like tissue grows outside of the uterus. Endometriosis can be brutally painful, is regularly misdiagnosed and misunderstood, and has affected Griffith’s life along with the lives of over 6 million other women in the U.S.

Griffith’s research and inventions have the potential to improve women’s health dramatically. The problem for women is that she stands out for another reason: She’s female. In 2020, only 12.8% of U.S. inventors receiving patents were women, and historically male researchers have ignored conditions like endometriosis.

Male researchers have tended to downplay or even outright overlook the medical needs of women. The result is that innovation has focused mainly on what men choose to research. My colleagues John-Paul FergusonSampsa Samila and I show in a newly published study that patented biomedical inventions in the U.S. created by women are 35% more likely to benefit women’s health than biomedical inventions created by men.

Bias By The Numbers

To determine which inventions are female-focused, male-focused or neutral, we analyzed the title, abstract and start of the summary text from 441,504 medical patents using the National Library of Medicine’s Medical Text Indexer. The indexer uses machine learning to categorize the subject of a text document, including whether it has a female or male focus.

Conversely, inventions patented by research teams that are primarily or completely composed of women were more likely to be focused on the needs of women in all 35 years of our data. These patents are more likely to address conditions like breast cancer and postpartum preeclampsia and diseases that disproportionately affect women like fibromyalgia and lupus. However, in 1976 only 6.3% of patents were invented by teams with as many women as men. By 2010 that figure had risen to only 16.2%. As a result, while inventions by women were more likely to be female-focused, such patents were uncommon because so few inventors were women.

We found that across inventor teams of all gender mixes, biomedical invention from 1976 to 2010 focused more on the needs of men than women. Our calculations suggest that had male and female inventors been equally represented over this period, there would have been an additional 6,500 more female-focused inventions. In percentage terms, equal representation would have led to 12% more female-focused inventions.

Looking Out For Women’s Needs

There are also more subtle benefits when more women invent. Female inventors are more likely to identify how existing treatments for non-sex-specific diseases like heart attacks, diabetes and stroke can be improved and adapted for the needs of women. Indeed, women are more likely to test whether their ideas and inventions affect men and women differently: for example, if a drug has more adverse side effects in women than in men.

In our study, we found that even within narrow disease areas like atrial flutter, women are still more likely to see opportunities to target their inventions for the specific health needs of women. Our results suggest that increasing representation should address these invisible biases.

The growing number of female inventors is starting to close the gap. In three of the five years from 2006 to 2010, the U.S. granted more female- than male-focused patents. In fact, since 2010, there has been a boom in female-founded startups building new and disruptive women’s health products ranging from new types of period underwear to smart breast pumps.

Mind the Gaps

Increasing the proportion of inventors who are women is important for improving women’s health care, but simply increasing the number of female scientists isn’t enough. It’s also the case that female scientists are 40% less likely to commercialize their research ideas than male scientists. The causes of this gender gap are myriad, from differences in mentoring to biases in the early-stage feedback women receive when trying to commercialize female-focused ideas.

No matter the underlying causes, the result is that while nearly 33% of published scientific discoveries were produced by majority-female research teams in 2010, only 16.2% of patents were invented by majority-female inventor teams in the same year. As with invention, we found that scientific discoveries by female scientists as measured by published research papers are 12% more likely to benefit women than discoveries by men. At least in the short term, helping female scientists commercialize their current research should boost the number of female inventors and the number of female-focused inventions.

More generally, our findings highlight how demographic inequities in who gets to invent lead to demographic inequities in who benefits from invention. Recent work shows how increasing the number of Black physicians benefits Black patients, and more generally the benefits of matching minority patients with minority physicians. This suggests the world doesn’t just need more inventors like MIT’s Griffith, but also more inventors like Dr. Patricia Bath, the first Black woman to receive a U.S. medical patent. Bath’s invention, a laser treatment to remove cataracts, was inspired by her observation that Black Americans were twice as likely as white Americans to suffer from blindness.

Be it gender or race, biases in who gets to conduct research and commercialize inventions is more than a matter of who gets to play. It’s also a matter of who benefits from the march of progress.

This piece was published in cooperation with The Conversation, an independent, nonprofit publisher of commentary and analysis, authored by academics on timely topics related to their research.

This MFP Voices essay does not necessarily represent the views of the Mississippi Free Press, its staff or board members. To submit an essay for the MFP Voices section, send up to 1,200 words and factcheck information to We welcome a wide variety of viewpoints.

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