Sort of like how Pyrex used to mean borosilicate glass, which has a low coefficient of thermal expansion, and is thus oven-safe.

This was the case for sixtysome years.

Then some douchebag decided that Pyrex wasn't a material, it was a "brand", and started slapping the name on kitchenware made of soda-lime glass, which will straight-up explode if you treat it like borosilicate.