I remember running into the Snow Leopard melody on Youtube. I think it's taken from a sample pack - several tracks were made with this exact style. Even people on youtube mention that the original Snow Leopard version feels familiar.And another stolen idea, this time from a UK producer Quade77.
Quade77 - Life Force (Original Mix) [31.07.2012] (starting from 3:41)
Danyella & Cygnus X-1 - Snow Leopard (Photographer Remix) [26.03.2012] (starting from 3:38)
I've heard of these two sounding familiar, but I just don't hear it. They are different enough to be considered separate.Original (which Lange also remixed btw)
Brainchild - Symmetry C
And very similar (still good one though)
Lange vs. Gareth Emery - Another You Another Me
Activa's Guesmix from Above & Beyond's "Group Therapy 422"
True, very similarAnd you could say the Jamnesia is similar to Xpanders synth pattern.