d. Corning
Pyrex is a type of heat-resistant glass that was invented in 1884 by a German company called Schott AG, which was later acquired by Corning Glass Works in 1915. The glass was initially developed for use in scientific laboratory equipment, but its durability and resistance to thermal shock made it popular for use in a wide range of applications, including cookware and bakeware. Today, Pyrex is a well-known brand name and is owned by Corelle Brands, a subsidiary of Instant Brands.