one of the little results of capitalism that continues to piss me off whenever it comes to mind (which, to be fair, isn't often), is how Pyrex-brand cookware isn't actually Pyrex, i.e. borosilicate glass of low thermal expansion any more. Corning spun off the consumer-goods division to some satellite company decades ago, who stopped making the cookware out of borosilicate, switching to tempered soda-lime (i.e. cheapass shit) glass.
That's the great thing about Brands™. Their greatness dies, but the Brand™ lives on, the lingering stench produced by the rotting corpse of a technological achievement. https://witches.town/media/j_P1U_9pL_wlNOC7n_g