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US 644077

How Felix Hoffmann Invented Aspirin

The 1900 patent for acetylsalicylic acid, the chemical compound that became the world's most common pain reliever, known as Aspirin.

Statusexpired

Granted1900

Expires1918

Claims0

Forward citations6

Prior art0

AssigneeFARBENFABRIKEN OF ELBERFELD Co

InventorsFelix Hoffmann

Patent B

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