OpenAI Sued Over AI Patents Covering Retrieval, Personalization and Content Generation

Many Worlds 2T Innovations LLC has filed a patent infringement lawsuit against OpenAI OpCo, LLC, alleging that OpenAI’s artificial intelligence products and services infringe five AI patents covering personalized search, vector-based retrieval, recommendation systems and probabilistically controlled content generation. The complaint, filed August 31, 2026, in the U.S. District Court for the Eastern District of Texas, Marshall Division, seeks a jury trial, monetary damages in the form of past and continuing royalties, enhanced damages for alleged willful infringement, and an injunction prohibiting continued infringement.

The Patents

The patents-in-suit are U.S. Patent Nos. 8,676,742; 8,843,433; 10,699,202; 12,307,388; and 12,299,603. According to the complaint, the patents claim priority to provisional applications filed as early as March 29, 2011. Many Worlds characterizes its patents as addressing technical shortcomings in earlier recommendation and information-retrieval systems.

The complaint alleges that conventional systems relied heavily on collaborative filtering, which analyzed user behavior without adequately considering the characteristics of the content being recommended. According to Many Worlds, the previous approach applied by conventional systems created what is referred to as a “cold-start problem”, which occurs when a new AI system, user or item lacks historical data needed to make accurate predictions or recommendations. In essence, a “cold-start” is akin to starting over without context or history, which caused conventional systems to operate as a “black box” that could not explain why a particular recommendation was generated.

According to Many Worlds, the asserted patents addressed these and other deficiencies with conventional systems through specific computer architectures involving fuzzy networks, weighted affinity relationships, contextual neighborhoods, behavioral analysis, content-based relevance analysis, vector representations and natural-language generation.

The oldest patent asserted is the ‘742 patent, issued on March 18, 2014, and titled Contextual Scope-Based Discovery Systems. Many Worlds alleges both direct and induced infringement through OpenAI’s products and services, including ChatGPT, ChatGPT Memory, ChatGPT Shopping Research, ChatGPT Deep Research, ChatGPT Projects, ChatGPT Search, OpenAI Vector Stores and File Search. The complaint focuses on the alleged use of vector-store retrieval indexes that organize embedded content according to degrees of relatedness. Many Worlds also points to controls such as relevance thresholds, maximum-result settings, reranking and hybrid semantic-keyword search as allegedly corresponding to claimed mechanisms for setting the scope of a contextual neighborhood. The complaint further alleges that OpenAI combines those retrieval functions with inferences drawn from users’ prior behavior, all of which together infringes the ‘742 patent.

The second patent asserted in chronological age—although asserted in Count 5—is the ‘433 patent, issued on September 23, 2024, and entitled Integrated Search and Adaptive Discovery System and Method. Many Worlds alleges both direct infringement and inducement, asserting that OpenAI infringes through its retrieval-augmented recommendation platform, which relies on embedded content objects and relevance scores that infer the user’s interest by topic based on usage behavior.

Also asserted is the ‘202 patent, issued on June 30, 2020, and titled Inferential-based Communications Method and System. Many Worlds alleges both direct infringement and inducement, asserting that OpenAI infringes through its server-side text-generation platform, which analyzes content text to produce relevancy values, maintains behavior-derived topic values for the user, and generates communications whose words are selected under those values together with enforced syntactical rules.

The the ‘388 patent was issued on May 20, 2025, and  is titled Probabilistically Tunable Conversational Method and System. Many Worlds alleges both direct infringement and inducement, asserting that OpenAI infringes through its generation stack, which exposes documented sampling controls to the user, applies the supplied setting to the probabilistic token-selection step, generates successive syntactical elements each conditioned on the last, and delivers a communication whose theme is derived from a vector representation of a retrieved content object.

The final patent asserted is the ‘603 patent, issued on May 13, 2025, and titled Vector-Based Search Method and System. Many Worlds alleges both direct infringement and inducement explaining that OpenAI infringes through its retrieval stack, which embeds stored content objects into a multi-dimensional vector space using neural network models, embeds the user’s query into the same space, compares the query vector against the stored vectors by cosine similarity, selects the highest scoring vectors, and returns the corresponding content.

Eligibility and Venue Arguments

The complaint also anticipates that OpenAI will challenge the patents under Section 101, which is virtually guaranteed. So, Many Worlds argues in the alternative in the complaint that the asserted claims do not recite abstract ideas, or, if the court determines the claims do recite abstract ideas, that they are still patent eligible because they recite an inventive concept based on the ordered combination of elements, which would make the asserted claims patent eligibility under Step 2B of the Alice/Mayo framework.

Finally, the complaint presents a forum selection theory that explains why the Eastern District of Texas is an appropriate venue for this dispute. Many Worlds alleges that OpenAI maintains a regular and established place of business at an artificial-intelligence data-center campus in Denton County, which is located within the Eastern District of Texas. According to the complaint, the campus is believed to include approximately 394 megawatts of computing capacity and more than 16,000 graphics processing units operating OpenAI workloads by the end of 2025. Many Worlds also alleges that OpenAI has exclusive use of dedicated capacity at the facility under contractual arrangements involving an aggregate commitment of approximately $22.4 billion. If true, that should make the Eastern District of Texas a proper venue for this litigation.

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