Cortex MCP, Inc. v. Visa, Inc.

Case Overview and Background

This patent infringement suit involves a dispute in the financial technology sector over secure mobile payments. The plaintiff, Cortex MCP, Inc., was launched in 2012 as a technology company developing a "next-generation mobile-wallet platform" designed to work across all devices without disrupting existing merchant point-of-sale systems. While initially an operating company, Cortex is now asserting its patent portfolio, a business model that resembles a non-practicing entity (NPE) in this context. The defendant is Visa, Inc., a global financial services corporation that provides payment card services and related technologies. Cortex alleges that Visa's tokenization technology, particularly its Visa Token Service (VTS), infringes on its patents. VTS is a widely used security solution that replaces a customer's actual credit card number with a unique digital identifier, or "token," to secure online and in-app transactions, thereby reducing the risk of data theft.

The dispute centers on U.S. Patent No. 9,251,531, along with three other related patents. The '531 patent, titled "File format and platform for storage and verification of credentials," generally describes a method for creating, storing, and verifying secure, officially verifiable electronic representations of credentials on a mobile device. The case was originally filed on January 26, 2023, in the U.S. District Court for the Western District of Texas (6:23-cv-00048), a venue known for attracting a high volume of patent litigation. However, on November 3, 2023, the case was transferred to the U.S. District Court for the Northern District of California (5:23-cv-05720), where it is assigned to Judge Edward J. Davila. This venue change is significant, as the Northern District of California is a preferred forum for major technology companies and is often perceived as being more skeptical of patent assertions than the Western District of Texas. The transfer typically follows arguments that the defendant's headquarters, relevant witnesses, and evidence are located in the new district.

The case is notable for several reasons. It highlights the conflict between established financial giants and smaller technology firms over the ownership of foundational mobile commerce technology. According to the complaint, the lawsuit followed a 2013 meeting where Cortex disclosed its technology to a Visa software unit under a non-disclosure agreement, adding a layer of alleged breach of confidence to the patent infringement claims. Furthermore, the case demonstrates a common defense strategy where a large defendant, Visa, has filed five inter partes review (IPR) petitions with the Patent Trial and Appeal Board (PTAB) challenging the validity of all asserted patent claims. This led the district court to grant a stay of the litigation pending the outcome of those PTAB proceedings and any subsequent appeals, a move that can delay district court litigation for years and often simplifies the case or ends it entirely if the patents are invalidated.

Key Legal Developments and Outcome

This patent infringement case is currently stayed pending a Federal Circuit appeal of related inter partes review (IPR) proceedings that found most claims of the asserted patent unpatentable.

Filing and Venue Transfer

• 2023-01-26: Cortex MCP, Inc. filed a complaint for patent infringement against Visa, Inc. in the U.S. District Court for the Western District of Texas (Case No. 6:23-cv-00048). The complaint accused Visa's mobile wallet and payment technologies of infringing four patents, including U.S. Patent No. 9,251,531. The complaint alleged that Visa had misappropriated Cortex's technology following a 2013 meeting that was supposed to be covered by a non-disclosure agreement.
• 2023-04-20: After Cortex filed a First Amended Complaint, Visa moved to dismiss certain claims and also moved to transfer the case to the U.S. District Court for the Northern District of California.
• 2023-11-03: The Western District of Texas court granted Visa's motion to transfer.
• 2023-11-07: The case was transferred and assigned Case No. 5:23-cv-05720 in the Northern District of California, assigned to Judge Edward J. Davila.

Parallel PTAB Proceedings

• 2024-01-25 / 2024-01-26: Visa filed five IPR petitions with the Patent Trial and Appeal Board (PTAB), challenging all claims of the four patents asserted in the litigation. Specifically, petitions IPR2024-00486 and IPR2024-00487 were filed against the '531 patent.
• 2024-08-02: The PTAB issued decisions instituting trial for the IPRs against the '531 patent.
• 2025-07-21: The PTAB issued a consolidated Final Written Decision for the IPRs covering the '531 patent. The Board found a majority of the challenged claims unpatentable but determined that Visa had not met its burden to show that a smaller subset of claims were unpatentable.
• 2025-11-07: Cortex's request for Director Review of the PTAB's decision was denied, affirming the Final Written Decision.
• 2025-12-17: Cortex MCP, Inc. appealed the PTAB's final decision to the U.S. Court of Appeals for the Federal Circuit (Appeal No. 26-1259, 26-1260). This appeal remains pending.

Motion to Stay and Current Status

• 2024-06-04: Visa filed a motion to stay the district court litigation pending the final resolution of the IPR proceedings. Visa argued that the case was still in its early stages, as a claim construction hearing had not yet been held, and that the IPRs could simplify or dispose of the issues in the case.
• 2024-07-22: Judge Davila granted Visa's motion to stay the case. The court agreed that the litigation was in its early stages, a stay would simplify the issues, and Cortex, as a non-practicing entity, would not suffer undue prejudice. The court also terminated Visa's pending motion to dismiss and vacated the scheduled claim construction hearing.
• 2026-02-19: The court granted a motion to extend the stay, ordering the parties to file a joint status report within one week of the Federal Circuit's final decision on the PTAB appeals.

The case is currently stayed. The future of the litigation depends entirely on the outcome of the Federal Circuit's review of the PTAB's unpatentability findings for the '531 patent and the other related patents-in-suit.

Plaintiff's Counsel of Record Identified

Cortex MCP, Inc. has retained a team of seasoned patent litigators primarily from the boutique trial firm Susman Godfrey L.L.P., supported by experienced Texas-based trial counsel. The legal team is composed of nationally recognized figures in intellectual property law.

Susman Godfrey L.L.P.

Max L. Tribble, Jr. - Lead Counsel

• Firm & Office: Susman Godfrey L.L.P., Houston.
• Note: A permanent member of Susman Godfrey's Executive Committee, Tribble is a veteran trial lawyer with major victories in patent infringement cases for clients like Paltalk and Atlas Global Technologies.

Kalpana Srinivasan - Lead Counsel

• Firm & Office: Susman Godfrey L.L.P., Los Angeles.
• Note: As a managing partner of the firm, Srinivasan is a highly acclaimed trial lawyer with extensive experience in high-stakes patent and technology litigation, representing clients such as Caltech in major infringement campaigns.

Davida P. Brook - Counsel

• Firm & Office: Susman Godfrey L.L.P., Los Angeles.
• Note: A trial lawyer known for her work in high-profile cases, including Dominion Voting Systems' defamation lawsuit against Fox News.

Rocco Magni - Counsel

• Firm & Office: Susman Godfrey L.L.P., Houston.
• Note: An accomplished trial lawyer recognized as a "Rising Star" by Law360, with experience in complex commercial and intellectual property disputes.

Tyler M. Finn - Counsel

• Firm & Office: Formerly Susman Godfrey L.L.P., New York; currently Dynamis LLP, New York.
• Note: A litigator with experience in high-stakes disputes including intellectual property, who has represented plaintiffs in major antitrust class actions.

Thomas Victorino DelRosario - Counsel

• Firm & Office: Listed on the docket as Susman Godfrey L.L.P., Houston; however, other sources indicate he is a Senior Attorney at AZA Law in Houston.
• Note: An intellectual property litigator with an electrical engineering background, admitted to practice before the U.S. Patent and Trademark Office.

Davis, Cedillo & Mendoza, Inc. (Local Counsel)

Ricardo G. Cedillo - Local Counsel

• Firm & Office: Davis, Cedillo & Mendoza, Inc., San Antonio.
• Note: A founding partner of his firm, Cedillo is an internationally recognized trial attorney with decades of experience in complex commercial litigation, including patent and intellectual property disputes.

Joseph Lawrence Korbel - Local Counsel

• Firm & Office: Davis, Cedillo & Mendoza, Inc., San Antonio.
• Note: An associate attorney and member of the firm's trial team who previously interned for U.S. District Judge Fred Biery, the judge initially assigned to this case in the Western District of Texas.

Former Counsel

Bryce T. Barcelo

• Firm & Office: Formerly of Susman Godfrey L.L.P. and Flatirons Law Group, PLLC; now founder of Barcelo Law PLLC.
• Note: An intellectual property litigator with over a decade of experience at Susman Godfrey in high-stakes patent cases; his representation in this matter was terminated on August 5, 2024, according to the docket.

Counsel for Defendant Visa, Inc.

Visa, Inc. is represented by a team of patent litigators from the law firm Wilson Sonsini Goodrich & Rosati. Filings in the district court case and related inter partes review (IPR) proceedings at the Patent Trial and Appeal Board (PTAB) confirm the key attorneys involved.

Lead Counsel

• James C. Yoon, Partner at Wilson Sonsini Goodrich & Rosati, Palo Alto, CA.

  • A leader of the firm's patent trial and litigation practice, Yoon has over 25 years of experience and has litigated more than 200 patent cases. He was listed on a consent/declination filing in the Northern District of California, indicating his active role after the case transfer (N.D. Cal. Dkt. 59). His biography highlights numerous successful outcomes as lead trial counsel for major technology companies.

• Matthew A. Argenti, Partner at Wilson Sonsini Goodrich & Rosati, Palo Alto, CA.

  • Argenti's practice focuses heavily on patent litigation and post-grant proceedings before the PTAB. He is listed as principal counsel for Visa in a related Federal Circuit appeal (No. 26-1733) and on multiple filings for the IPRs challenging the Cortex patents (e.g., IPR2024-00486). He has previously represented Visa in other patent matters.

Of Counsel / Additional Counsel

• Michael T. Rosato, Partner at Wilson Sonsini Goodrich & Rosati, Seattle, WA.

  • Rosato leads the firm's practice for contested proceedings at the U.S. Patent and Trademark Office and has served as lead counsel in numerous IPRs. He is listed on the PTAB petitions filed against the Cortex patents and has appeared as counsel for Visa alongside Matthew Argenti in other patent appeals.

• Catherine R. Lacey, Of Counsel at Wilson Sonsini Goodrich & Rosati, San Francisco, CA.

  • Lacey focuses on intellectual property disputes, with an emphasis on patent and trade secret litigation. A motion for her to appear pro hac vice was granted in the original Texas venue, indicating her inclusion in the core defense team. Her current appearance status in the Northern District of California is not explicitly confirmed by the available search results, though she is listed on the PacerMonitor docket for the case.

• Lucy Yen, Partner at Wilson Sonsini Goodrich & Rosati, New York, NY.

  • Yen's practice includes intellectual property and complex commercial litigation, with extensive trial experience. A motion for her to appear pro hac vice was also granted in the Texas venue, though like Lacey, her formal appearance on the N.D. Cal. docket is not specified in the search results but she is listed on the PacerMonitor docket.

• Patrick M. Medley, Associate at Wilson Sonsini Goodrich & Rosati, Seattle, WA.

  • Medley's practice focuses on patent prosecution and contested proceedings before the USPTO. He is named alongside Argenti and Rosato on filings for the IPR petitions against the Cortex patents.

Local Counsel (Prior Venue)

• Leslie Sara Hyman, Partner at Pulman, Cappuccio & Pullen, LLP, San Antonio, TX.
  • Hyman filed the initial notice of appearance on behalf of Visa and the pro hac vice motions for other Wilson Sonsini attorneys when the case was in the Western District of Texas. Her role was likely local counsel for that venue. There is no indication from the search results that she has made an appearance in the Northern District of California following the case transfer.