Erise IP

Erise IP is a specialist intellectual property boutique law firm founded by former "Big Law" attorneys. With offices in Overland Park, Kansas, and Denver, Colorado, the firm has approximately 30 lawyers and is recognized by Chambers and Partners with a "Band 1" ranking for Intellectual Property in Kansas. While not an AmLaw-ranked firm, Erise positions itself as an IP powerhouse that performs at the level of larger firms, representing clients ranging from startups to Fortune 100 companies.

The firm has a distinguished reputation for patent litigation across a range of high-technology sectors. Its attorneys have expertise in software, telecommunications, network security, and gaming. This focus is reflected in its representation of clients like Sony in litigation involving its PlayStation consoles and controllers, as seen in Fleet Connect Solutions LLC v. Sony Group Corporation. The firm also handles litigation related to gaming accessories, as evidenced by its work for both plaintiff and defendant in the cross-disputes between Collective Minds Gaming Co. Ltd. and Ironburg Inventions Ltd.

Based on the provided case list showing an equal number of plaintiff and defendant representations, the firm appears to work on both sides of infringement disputes. However, Erise's public profile and reported results heavily emphasize its successful work for defendants. The firm promotes a track record of "six consecutive defense verdicts" since 2018 and has been ranked by Patexia among the top-performing patent defense firms in the United States. A notable outcome includes securing summary judgment for Sony in a $500 million patent infringement case related to its video game controllers.

Beyond district court litigation, Erise IP maintains a highly active and recognized practice before the Patent Trial and Appeal Board (PTAB). The firm's attorneys filed the first-ever inter partes review (IPR) in 2013 and have since filed over 220 IPR petitions. Erise is consistently ranked by publications like Law360 and Patexia as one of the country's top firms for PTAB proceedings. Key partners and leaders in the patent litigation practice include founding members Eric A. Buresh and Adam Seitz, who are both recognized as top-tier IP litigators by Chambers USA and other legal directories.