Online gambling technology provider GAN has sicced lawyers on US gaming operators it believes are using its patented technology without permission.

On Friday, GAN announced that it had enlisted Chicago-based intellectual property litigation firm Irwin IP LLP to rap the knuckles of any gambling company operating in the US that GAN believes is infringing on its intellectual property rights.

The specific technology in question involves US casino operators’ retail rewards program members linking their membership cards to their online gambling accounts, thereby allowing them to earn further rewards points via their online activity.

Irwin’s attorneys will focus on operators plying their trade in New Jersey, Nevada, Delaware and Pennsylvania, i.e. the four US states that have authorized intrastate online gambling activities (although Pennsylvania has yet to actually launch its online market).