Airbus tried and failed to make their own blended winglets for the A320 last decade.
Eventually a few years ago they went to Seattle with their tail between their legs and Aviation Partners (the ones who make the 737NG blended winglets) sorted them out.
I guess that's why they look very similar to the 737NG blended winglets.
As for the "sharklets" name... I guess the
PR department is desperate to make them sound like new technology... after all, no other airliner has "sharklets"!
Ha Ha.....that's really funny. Do you live with Alice in Wonderland or with the Tinman in Oz?
Google it for the real story......