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.
[0] http://themainframe.ca/content/images/2015/09/Pyrex-infograp...
But then another brand by Corning is the same, they had a range of unbreakable product called Corelle, the new stuff since it got sold off just isn't the same.
Uh what ? What do you mean, I don’t see any relationship between Pyrex and the war on drugs at all and I’m really curious !
A few years ago i7 also meant basically the high end desktop market (socket 2011) which meant more ram and IO. But then they slapped it on the dual channel desktop socket market.
So, yah the brand becomes meaningless when its just marketing for "this one will cost you more".