Soverain Software

Soverain Software LLC was a Chicago-based company which owned patents for its ecommerce technology products. The company held patents for digital shopping carts commonly used on e-commerce websites, such as Amazon.com and collected royalties on these patents, but ultimately their patents were invalidated. Soverain Software has been characterized as a patent troll.

Soverain also claimed to own, sell, and maintain an enterprise software product called Transact, which, according to the company, had existed for nearly 18 years and had been used by over 1,000 customers in over 25 countries, including companies such as Time-Warner, AT&T, Sony, Disney, BusinessWeek and Reuters. However, this is disputed, and no evidence that the company ever developed or sold software products is known to exist.

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