Household and Health
Mary Beatrice Davidson Kenner
1912–2006
1956
Sanitary belt and accessibility inventions
What Mary contributed
Patented an adjustable sanitary belt and later patented improvements for walkers, bathroom tissue holders, and bathing aids.
The story
Kenner developed useful household ideas for decades despite racial and gender barriers that delayed commercial recognition of her work.
Why it matters
Her practical designs improved personal care, mobility, and independence.
Patent record
U.S. Patent 2,745,406 and others
