'Named' orchids not on RHS orchid register

[Pippa]

I have a couple of Phals that came with names, but the names are not listed on the RHS orchid register. Is there any way of finding out parentage etc, or is it that they have just been given names to make them more commercially attractive and their 'real' names could actually be something quite different?

I have Phal 'Nemo', Phal 'Little Lady Kyo' and Phal 'Kate'. Yes, I admit to turning into a complete orchid nerd - I know their history doesn't make them any more/less beautiful, but I love finding out.