Unified Patents v. Healthgpt Inc dba Hippocratic Ai

Unified Patents initiated a Post-Grant Review (PGR) proceeding before the Patent Trial and Appeal Board (PTAB) against Healthgpt Inc dba Hippocratic AI. Unified Patents is a defensive patent organization that aims to deter abusive patent litigation by challenging the validity of patents held by Non-Practicing Entities (NPEs) and others through inter partes reviews (IPRs) and PGRs. Healthgpt Inc, operating as Hippocratic AI, is an operating company focused on developing large language models (LLMs) specifically for healthcare applications, aiming to create safe and trustworthy AI for patient care. While the PGR itself challenges the patent's validity rather than directly accusing infringement, the nature of Unified Patents' mission suggests this action is likely aimed at clearing the patent landscape for companies operating in the AI healthcare space.

The patent at issue in this PGR is U.S. Patent No. 12,142,371, titled "System and Method for a Virtual Healthcare Agent". This patent generally describes a system and method that allows a virtual healthcare agent to interact with a patient, potentially using AI to provide information or support in a healthcare context. The procedural posture of this case is a Post-Grant Review (PGR) at the PTAB, assigned case number PGR2025-00075. The petition was filed on February 29, 2024. The PTAB declined to institute the review on the merits, meaning the Board found that Unified Patents' petition did not demonstrate a reasonable likelihood that at least one challenged claim of the patent is unpatentable, thus stopping the proceeding before a full trial on validity.

This case is notable due to Unified Patents' role as a prominent entity challenging patent validity to mitigate patent assertion risks, especially concerning emerging technologies. The involvement of Hippocratic AI highlights the increasing focus of patent validity challenges within the rapidly expanding and critical field of artificial intelligence in healthcare. The "Not Instituted - Merits" outcome is significant, as it means the patent owner, Hippocratic AI, successfully defended the patent's initial validity against the challenges raised in the PGR petition without proceeding to a full review.

This case is a Post-Grant Review (PGR) proceeding, not a patent infringement litigation. Therefore, the typical legal developments associated with infringement litigation (complaint, answer, Markman, discovery, trial, etc.) do not apply here. The key legal developments for this PGR proceeding focus on its filing, institution decision, and final disposition.

Key Legal Developments and Outcome for PGR2025-00075

• PGR Petition Filing (2024-02-29): Unified Patents filed a Post-Grant Review petition challenging the validity of U.S. Patent No. 12,142,371. The patent, titled "System and Method for a Virtual Healthcare Agent," is owned by Healthgpt Inc dba Hippocratic AI. This patent broadly covers an AI-driven virtual healthcare agent for patient interaction and support.
• Patent Issuance (2024-11-12): While the petition was filed on February 29, 2024, the '371 patent itself was issued on November 12, 2024. This timing is unusual for a PGR, as PGRs must be filed within nine months of a patent's issuance. This suggests there might be a discrepancy in the initial information or that Unified Patents filed the PGR based on an early publication or reissuance that is not immediately apparent. However, assuming the filing date of February 29, 2024, and the issuance date of November 12, 2024, as provided, the petition was filed before the patent issued. This would technically make it an improper PGR filing if relying strictly on the issuance date. A more likely scenario is that the patent was published for opposition earlier, and the February 29, 2024 date refers to the filing relative to that publication, or the "filed" date in the metadata refers to an intent to file or a preliminary petition. It's also possible that the filing date refers to a provisional application and the patent issued from a non-provisional application, with the PGR clock starting from the non-provisional issuance. For the purpose of this summary, we proceed with the provided dates, acknowledging this potential chronological inconsistency.
• Non-Institution on Merits (Date not precisely available): The PTAB ultimately decided not to institute the Post-Grant Review on the merits. This means the Board found that Unified Patents' petition did not demonstrate a reasonable likelihood that at least one challenged claim of U.S. Patent No. 12,142,371 was unpatentable. The exact date of the institution decision is not readily available, but the USPTO PTAB Open Data Portal indicates an "Order Denying Director Review of Institution Decision" for PGR2025-00075 on April 3, 2026. This suggests the initial non-institution decision occurred prior to this date. The Director review process for institution decisions became a more prominent factor in PTAB proceedings, particularly after October 20, 2025, when the USPTO Director announced they would determine whether to institute trials for all IPR and PGR proceedings.

Outcome: The PGR proceeding (PGR2025-00075) was not instituted on the merits, resulting in a favorable outcome for Healthgpt Inc dba Hippocratic AI, as their patent, U.S. Patent No. 12,142,371, was not subjected to a full validity trial at the PTAB. This outcome reinforces the patent's presumptive validity against the grounds raised in Unified Patents' petition. Hippocratic AI has publicly announced the issuance of their Patent 12,142,371 in October 2025, emphasizing its coverage of their Polaris system, which utilizes a "constellation architecture" of multiple language models for healthcare AI applications.

Parallel PTAB IPR/PGR Proceedings: There is another PGR petition filed by OSSI Corporation on August 11, 2025, also challenging U.S. Patent No. 12,142,371. This petition challenges all 20 claims of the patent under 35 U.S.C. § 101, arguing that the claims attempt to monopolize the abstract idea of steering a conversation with checklist rules and a background fact-checker. The status and outcome of this second PGR (filed after Unified Patents' PGR was not instituted) are not yet clear, but it indicates continued challenges to the patent.

It is important to note that the provided metadata indicates a "Not Instituted - Merits" status for PGR2025-00075, which aligns with the search results indicating an "Order Denying Director Review of Institution Decision" on April 3, 2026. This confirms the case did not proceed to a full trial. There is no indication from the provided information of any parallel district court patent infringement litigation directly involving U.S. Patent No. 12,142,371. However, Health GPT, Inc. was a defendant in a trademark case filed by Hippocratic AI, Inc. in the California Northern District Court on September 14, 2023 (3:23-cv-04738). This case appears unrelated to the patent validity challenge.

Unified Patents, as an organization that challenges patent validity, typically relies on in-house counsel and potentially engages outside counsel for specific cases. While the specific docket for PGR2025-00075 is not publicly available to identify the precise attorneys who appeared, Unified Patents employs Senior Patent Counsel who are responsible for managing and litigating patent office proceedings, including Post-Grant Reviews.

Key information regarding Unified Patents' counsel structure and relevant experience:

• Role and Experience: Unified Patents actively hires Senior Patent Counsel with at least five years of experience in PTAB proceedings (drafting petitions, filing, litigating, depositions) or relevant reexamination experience. These attorneys are expected to manage patent office proceedings internally, draft and file petitions, handle calls with decision-makers, and draft motions and briefs.
• Technical Background: A strong technical background is preferred, with experience in diverse technologies such as video codecs, coding, cryptography, compression, signals, wireless communications, or other algorithmic subject matter being a plus. This aligns with the AI/healthcare technology of the patent at issue in PGR2025-00075.
• Firm/Organization: Unified Patents is not a law firm but a deterrence entity that acts independently to challenge patents it believes are unpatentable or invalid. Therefore, the counsel representing Unified Patents would be their in-house legal team.
• Known Counsel (General): Publicly available information on Unified Patents' team lists individuals such as Jenn Bisk and Kyla Bulter as Senior Patent Counsel. While it cannot be confirmed without the specific docket for PGR2025-00075, these individuals represent the type of experienced in-house counsel who would handle such a proceeding.

Without direct access to the docket for PGR2025-00075, the specific attorneys of record for Unified Patents in this particular case cannot be definitively identified. However, based on Unified Patents' operational model and hiring practices, the plaintiff would have been represented by their in-house Senior Patent Counsel, experienced in PTAB challenges.

As of the current date, May 24, 2026, details about the specific counsel of record for Healthgpt Inc dba Hippocratic AI in the PGR2025-00075 proceeding are not publicly available through general web searches of PTAB dockets. PTAB proceedings, particularly those that are not instituted, often have less detailed public records regarding specific attorney appearances compared to district court cases.

However, based on available information regarding Hippocratic AI and its legal needs, we can infer some general characteristics of their legal representation.

Hippocratic AI is a company focused on developing large language models for healthcare, and they have recently announced the issuance of their first patent (not the '371 patent at issue in this PGR, but a different one related to their "Polaris" architecture). This indicates that they are actively involved in patenting their innovations and would therefore likely engage experienced patent counsel to defend their granted patents.

Public job postings for Hippocratic AI, such as for an "Associate General Counsel," suggest they are building an in-house legal team capable of handling a broad range of corporate, commercial, regulatory, and intellectual property matters, including patent strategy. Sulaiman Qazi is noted as Senior Vice President, Chief Compliance Officer for Hippocratic AI's Life Sciences business, leading compliance and regulatory frameworks. While his role is not specifically tied to patent litigation, it indicates the presence of a sophisticated in-house legal department.

Given that the PGR was not instituted on the merits, it implies that the arguments presented by Healthgpt Inc dba Hippocratic AI's counsel were successful in persuading the PTAB that Unified Patents' petition did not meet the standard for institution. This would typically involve experienced patent attorneys specializing in PTAB proceedings.

Without direct access to the official PTAB docket for PGR2025-00075, the precise names, roles, firms, and specific patent litigation experience of the attorneys who represented Healthgpt Inc dba Hippocratic AI cannot be definitively identified.