*SMH* THIS is the reason patents should NOT be transferable. Patents are supposed to protect IPs, not to be traded as a business on its own!
These types of outfits exist because large corporations used to violate the IP of amsll inventors with impunity. The little guy never had the financial resources to sue the big guy. So companies like this popped up that paid off the original inventors so they at least ended up some compensation for their efforts.