That's something I've been wondering myself. I'm going to assume gamesas owns some IPs while others were sold off to pay off Titus' debt when they went under.
That's my guess, most likely I'm wrong
EDIT- Found this at the end of the article in the link.
Eventually, the French government forced Titus Interactive into liquidation but named Hervé Caen as the person in charge of administring said liquidation, after which he reportedly promptly transferred what few assets Titus had left to gamesas, leaving investors with absolutely nothing.
http://www.giantbomb.com/titus-interactive-sa/65-165/
Currently playing - MDK2 (WiiWare)
gamesas games I'm waiting for - Descent (Wii) &
Clayfighter (DSi)