From Mary Bellis,
Your Guide to Inventors.
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Dry ice was discovered not invented - the name was trademarked by the first company to sell dry ice.

Dry Ice is the generic name for carbon dioxide in its solid form, frozen at -109.3 ° F or -79.5° C. Dry Ice does not melt - it sublimates. Sublimation is the process of going directly from a solid to a gas, giving it its name "Dry" Ice.

Dry Ice Trademark

As a natural substance, Dry Ice is not an invention, Dry Ice was discovered, however, the name was trademarked. The Dry Ice Corporation of America first trademarked the name Dry Ice in 1925.