I'd guess they either don't have the rights, or don't have the obligations. If you're suing for breech of contract, you'd have to show they have the obligations

I'd guess they either don't have the rights, or don't have the obligations. If you're suing for breech of contract, you'd have to show they have the obligations; if you're suing for infridgement, you have to show they don't have the right.