Point of post?
They are completely different examples.
Ask 'Average Joe in the Street' what 'Tarmac' or a 'Hoover' is and there is an extremely high probability they will know.
Ask 'Average Joe in the Street' what 3DV is and they would most likely be clueless.
'Purple' - they would most probably recognise and be familiar with...
Out of context I would say your post was Crud wouldn't you?
But thank you for taking the time to create a list of proprietary eponyms for me - always such a pain in the arse having to take the time to think of them all when one needs them...
they are great examples, probably the best? A brand name to describe similar products?
Really? you dont understand?
Ask average joe how much does he thinks a tweny year old MTB is worth!
in my line of work brand names are used all over the place in the same way, so does every walk of life, its is not unique to 'my' (lifted) list and 3dv.
Most probably fly straight over average joes head.