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Helen Murray Free - Inventor
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Helen Murray Free

description Helen Murray Free Overview

Helen Murray Free was an American chemist whose work transformed routine clinical testing, particularly tests used to detect and monitor diabetes. Working with her husband, Alfred Free, at Miles Laboratories, she helped develop dry reagent strips that changed color when exposed to substances in urine. Their products included Clinistix, introduced in the 1950s for glucose testing, and later multiple-test strips that made chemical screening faster and more accessible.

insights Ranking position

Helen Murray Free ranks #444 of 507 in the Inventor ranking, behind Harry Coover, ahead of Ferdinand von Zeppelin.

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How good is Helen Murray Free?
Helen Murray Free scores 7.02/10 (Good) on Lunoo, making it a well-rated option in the Inventor category.
What are the best alternatives to Helen Murray Free?
See our alternatives page for Helen Murray Free for a ranked list with scores. Top alternatives include: William D. Coolidge, Otto Wichterle, Willem Kolff.
How does Helen Murray Free compare to William D. Coolidge?
See our detailed comparison of Helen Murray Free vs William D. Coolidge with scores, features, and an AI-powered verdict.
Is Helen Murray Free worth it in 2026?
With a score of 7.02/10, Helen Murray Free is a solid option in Inventor. See all Inventor ranked.

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