You can check out the Royal Horticultural Society's website here:-
Royal Horticultural Society - Plants: The International Orchid Register
just put in the name of the parents used and ifit has been registered it will give you the name.
I did try the cross you made and it doesn't look as though it has been registered.
Do you have pics of the flowers?
Interesting cross, Deperle is a cross between primulinum and delenatii... and to add barbatum to it which is one of the species which has been used in breeding for the 'maudiae-type' slipper orchids. It would be interesting if the dorsal and colour of barbatum comes through in the cross.
good luck with it!