The complaint, filed at the US District Court for the District of Delaware, accuses Groupon of building its business model using IBM's patents without authorization despite prior warnings.
"Groupon has refused to engage in any meaningful discussions about reaching a license agreement to end its infringement of IBM's patents," IBM's complaint said.
IBM filed a lawsuit against Priceline Group Inc last year, accusing it of infringing four IBM patents in running its travel and dining websites.
Earlier this week, IBM Security said it plans to acquire private cyber-security firm Resilient Systems as part of a move to expand its role in the incident response market.
The sale comes amid a consolidation in the cyber-sector and a decline in valuations of public and private cyber-firms. Some investors believe the companies were overvalued after a host of headline-grabbing hacks against the US government and major corporations increased interest in the market.
Terms of the deal were not disclosed. The acquisition is being announced during the RSA security conference in San Francisco and expected to close later this year subject to regulatory review.
IBM said it intends to retain the roughly 100 employees working at Resilient Systems, including Chief Executive Officer John Bruce, a former vice president at Symantec, and Chief Technology Officer Bruce Schneier, a prominent cryptographer, security blogger, and author.
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