AML IP LLC v. Cinemark USA Inc

Case Overview & Background

On April 17, 2026, AML IP LLC, a Texas-based entity identified as a Non-Practicing Entity (NPE), initiated a patent infringement lawsuit against Cinemark USA, Inc., a major American movie theater chain headquartered in Plano, Texas. The complaint alleges that Cinemark's e-commerce platforms, including its customer rewards program, infringe upon AML IP's patent by using "electronic tokens" to facilitate online purchases and rewards. This legal action is part of a broader assertion campaign by AML IP, which filed similar lawsuits against other major companies like Marriott International, RaceTrac, and Callaway Golf on the same day, all in the Eastern District of Texas.

The sole patent-in-suit is U.S. Patent No. 7,177,838, titled "Method and apparatus for conducting electronic commerce transactions using electronic tokens." First filed in 2000, the '838 patent generally describes a system that allows vendors to issue and accept electronic tokens for payment without requiring real-time online communication with a third-party financial institution like a bank. The patent's validity has been publicly scrutinized; in 2018, the Electronic Frontier Foundation (EFF) criticized it as an example of a patent on an abstract idea—using tokens for commerce—that should be ineligible for protection under the Supreme Court's Alice v. CLS Bank decision.

The case was filed in the U.S. District Court for the Eastern District of Texas and assigned to Chief Judge Rodney Gilstrap, who is widely known as the nation's busiest patent judge. This venue is historically favored by patent assertion entities due to its plaintiff-friendly reputation, experienced judiciary in patent matters, and specialized local rules. While the Supreme Court's 2017 TC Heartland decision on venue initially reduced filings in the district, the Eastern District of Texas has since re-emerged as the top U.S. venue for patent litigation, particularly for cases brought by NPEs. The case is notable as a textbook example of a prolific NPE leveraging a controversial e-commerce patent against a large operating company in a preferred patent litigation forum.

Legal Developments and Case Status

As of May 4, 2026, the patent infringement litigation between AML IP LLC and Cinemark USA, Inc. is in its earliest stages. The case has seen no substantive legal rulings, and its activity has been purely procedural since being filed.

Chronological Developments:

• 2026-04-17: Complaint Filed
  AML IP LLC filed its complaint against Cinemark USA, Inc. in the U.S. District Court for the Eastern District of Texas, alleging infringement of U.S. Patent No. 7,177,838. The case was assigned to Chief Judge Rodney Gilstrap. The complaint accuses Cinemark's e-commerce and customer rewards programs of using "electronic tokens" in a manner that infringes the '838 patent. This filing was part of a larger campaign launched by AML IP on the same day, with nearly identical lawsuits filed against other major companies, including Marriott International, RaceTrac, and Callaway Golf, all within the Eastern District of Texas.

• Initial Procedural Filings:
  On the same day as the complaint, AML IP also submitted standard procedural documents, including a Notice of Filing of Patent/Trademark Form (AO 120), as required in patent cases.

Current Posture & Next Steps:

The case is currently open and awaiting Cinemark's response to the complaint. As of this date, no answer, motion to dismiss, or motion to transfer venue has been filed by the defendant. The deadline for Cinemark's response will be dictated by the Federal Rules of Civil Procedure, typically 21 days after service of the summons and complaint.

Given the context of AML IP's litigation campaign and the history of the '838 patent, several subsequent developments are anticipated:

• Answer and Counterclaims: Cinemark is expected to file an answer denying infringement and counterclaims seeking a declaratory judgment that the '838 patent is invalid and not infringed.
• Motion to Dismiss: A common early tactic in such cases is a motion to dismiss under Rule 12(b)(6), arguing that the patent claims are invalid under 35 U.S.C. § 101 for claiming an abstract idea, especially given the patent's subject matter and prior public criticism. Judge Gilstrap has specific standing orders governing the procedure for such motions.
• Venue Challenge: Cinemark, headquartered in Plano (Northern District of Texas), may file a motion to transfer the case out of the Eastern District of Texas, arguing it is an improper or inconvenient venue.
• Scheduling Order: Once the initial pleadings are settled, Judge Gilstrap will likely issue a docket control order setting deadlines for discovery, claim construction briefing (Markman hearing), and dispositive motions.

Parallel Proceedings:

There is currently no public record of any inter partes review (IPR) or other post-grant proceedings filed at the Patent Trial and Appeal Board (PTAB) by Cinemark or any other defendant challenging the validity of the '838 patent. However, defendants in widespread NPE campaigns often coordinate to file IPRs as a cost-effective strategy to invalidate the asserted patent and seek a stay of the district court litigation pending the PTAB's decision. This remains a significant possibility as the litigation progresses.

AML IP's broader litigation activities show a pattern of resolving cases quickly, sometimes through settlement or early dismissals, as seen in prior lawsuits over other e-commerce patents. This history, combined with Cinemark's own recent experience of settling other patent suits, suggests that an early business resolution is a plausible outcome.

Plaintiff's Counsel of Record

As of May 4, 2026, counsel for plaintiff AML IP LLC is still in the process of being fully established on the docket. The initial complaint was filed by one attorney, and local counsel has yet to make a formal appearance.

Lead Counsel

• Name: William P. Ramey, III
• Role: Lead Counsel
• Firm: Ramey LLP (Houston, TX)
• Experience Note: William "Bill" Ramey is the founding partner of Ramey LLP, a Houston-based intellectual property firm, and is a prolific filer of patent infringement lawsuits on behalf of patent assertion entities. His firm's practice focuses heavily on enforcing and licensing intellectual property. Ramey is admitted to practice in the Eastern District of Texas. He and his firm have faced judicial sanctions in other districts for litigation conduct, including in the Western District of Texas and the Northern District of California.

Other Counsel

As of the date of this report, no other attorneys have filed a notice of appearance on behalf of the plaintiff. The docket entry for the initial complaint, filed on April 17, 2026, lists only William Ramey. It is standard practice in the Eastern District of Texas for out-of-district lead counsel to associate with a local attorney who is then also entered as counsel of record. This appearance is expected to be filed in the near future. While AML IP has used other firms, such as Stamoulis & Weinblatt LLC, in prior litigation, there is no indication from the court's docket that they are involved in this specific case.

As of May 4, 2026, no counsel has filed a notice of appearance on behalf of defendant Cinemark USA, Inc. in the matter of AML IP LLC v. Cinemark USA Inc, case number 2:26-cv-00306. The complaint was filed on April 17, 2026, and the defendant's initial response or appearance is not yet due.

While no attorneys are currently on the docket for this case, an analysis of Cinemark's recent patent litigation defense provides insight into the counsel the company is likely to retain.

Counsel in Prior Patent Litigation

Cinemark has been a defendant in other patent infringement cases in the Eastern District of Texas and has retained experienced local and national counsel.

In Nearby Systems LLC v. Cinemark USA Inc (Case No. 2:23-cv-00385, E.D. Tex.), which was also before Judge Rodney Gilstrap and settled in 2024, Cinemark was represented by:

• Name: Vlada A. Wendel
• Role: Defense Counsel
• Firm: Norton Rose Fulbright US LLP (Austin, TX)
• Experience Note: Norton Rose Fulbright is a global law firm with a substantial intellectual property practice representing clients in high-stakes patent litigation across the country.

In Fall Line Patents, LLC v. Cinemark Holdings, Inc. et al (Case No. 6:2017-cv-00203, E.D. Tex.), Cinemark's counsel included:

• Name: Dan Duncan Davison
• Role: Defense Counsel
• Firm: Potter Minton, P.C. (Tyler, TX)
• Experience Note: As a long-established Tyler-based firm, Potter Minton frequently serves as local counsel for defendants in the Eastern District of Texas and has deep experience with the court's local patent rules and procedures.

In the multi-defendant case Intertrust Technologies Corporation v. Cinemark Holdings, Inc. (Case No. 2:19-cv-00266, E.D. Tex.), Cinemark was part of a joint defense group. While specific lead counsel for Cinemark is not clear from available documents, this case highlights Cinemark's experience in complex, consolidated patent actions.

Given this history, it is plausible that Cinemark will engage a combination of a large national firm with a deep patent litigation bench, such as Norton Rose Fulbright, and an established local firm, like Potter Minton, to serve as local counsel in the Eastern District of Texas for the current litigation. However, counsel will not be confirmed until a notice of appearance is filed on the public docket.