Plaintiff
1 case as plaintiff.
AG18, LLC is a Delaware-based limited liability company with a principal place of business in Great Neck, New York. According to a December 2024 SEC filing, the company was formed between 2019 and 2024. The filing lists Lily Guo as a related person and categorizes the company's industry as "Other Real Estate." Further details on its employee count or revenue are not publicly available.
AG18, LLC does not appear to be an operating company with products or services. Its activities center on the assertion of patents related to gaming technology. The patents asserted in its litigation concern "Location Based Restrictions on Networked Gaming," which cover systems for restricting a player's online wagering based on their geographic location.
The company's patent litigation posture is that of a patent assertion entity, also known as a non-practicing entity (NPE). This is evidenced by its history as a plaintiff in patent litigation with no record of being a defendant. The single tracked case for AG18, LLC is one it initiated as the plaintiff.
The company's notable legal action is its suit against DraftKings Inc. This litigation involved challenges at the Patent Trial and Appeal Board (PTAB) and an appeal to the U.S. Court of Appeals for the Federal Circuit. The dispute centered on U.S. Patent No. 9,978,205. In May 2026, the Federal Circuit affirmed a PTAB decision that found DraftKings had failed to prove a specific claim of AG18's patent was unpatentable.
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AG18, LLC appealed a PTAB decision regarding the patent. The Federal Circuit affirmed the PTAB's final written decision, upholding the invalidation of claims 1-17 and 19-30 and confirming that claim 18 survived the review.