Corning Glass Works Trademarks Pyrex and Offers Pyrex Cookware for Commercial Sale

Article abstract: Corning developed heat-resistant borosilicate glass before 1915, but in that year the company named the material and began marketing it for bakeware and laboratory applications.

Summary of Event

The first use of Corning’s heat-resistant glass for cooking occurred in 1913. Various stories abound; one version is of Jesse T. Littleton’s wife breaking a casserole in which she was about to bake a pudding, and substituting the only vessel available, the cut-off bottom of a battery jar made of heat-resistant glass. The result was “so...

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