Atlas Global Technologies LLC v. Walmart Inc

Case Overview & Background

This patent infringement lawsuit pits Atlas Global Technologies LLC, a patent assertion entity, against retail giant Walmart Inc. Atlas is a subsidiary of Acacia Research Corporation, a prominent firm specializing in the acquisition, licensing, and enforcement of patent portfolios. Walmart is a multinational retail corporation that operates a vast network of stores and a sophisticated supply chain, both of which rely heavily on wireless networking technology. The lawsuit alleges that Walmart's use of Wi-Fi networking equipment and systems infringes upon Atlas's patents. The accused technology specifically includes products and services that comply with modern Wi-Fi standards, such as Wi-Fi 5 (IEEE 802.11ac) and Wi-Fi 6 (IEEE 802.11ax), which are widely used to manage wireless data traffic in retail stores, distribution centers, and corporate offices.

The four asserted patents were originally granted to Newracom, Inc., a developer of wireless technologies, and relate to fundamental techniques for improving the efficiency and reliability of multi-user wireless communications. The patents cover:

• U.S. Patent No. 9,628,310: Methods for generating a "long training field" sequence used in multi-user transmissions.
• U.S. Patent No. 10,020,919: Techniques for constructing signal fields that protect high-efficiency wireless transmissions from interference.
• U.S. Patent No. 10,348,471: Systems for generating specific training fields in high-throughput wireless LAN systems.
• U.S. Patent No. 10,965,425: A method for embedding control information, such as user identifiers, within the preamble of a multi-user signal.

The case was filed in the Marshall Division of the U.S. District Court for the Eastern District of Texas and assigned to Chief Judge Rodney Gilstrap, a venue historically popular with patent plaintiffs due to its experienced judiciary and procedures often seen as favorable for bringing cases to trial. This case is notable as it exemplifies a common patent assertion strategy: targeting a large, technology-reliant operating company that is an end-user of standardized technology, rather than suing the manufacturers of the Wi-Fi components directly. Furthermore, the litigation is deeply intertwined with parallel administrative proceedings at the U.S. Patent and Trademark Office. The patent-defense consortium Unified Patents has proactively challenged the validity of all four asserted patents by filing requests for ex parte reexamination. The USPTO has already granted the request and instituted reexamination for the '425 patent, signaling that it has found a "substantial new question of patentability." The outcome of these validity challenges could significantly impact the district court case, potentially invalidating the asserted claims and providing Walmart with a powerful defense.

Key Legal Developments for Atlas Global Technologies LLC v. Walmart Inc.

As of May 1, 2026, the patent infringement lawsuit filed by Atlas Global Technologies LLC against Walmart Inc. is in its earliest stages. Key activities have centered on the initial complaint and the parallel administrative challenges to the validity of the asserted patents at the U.S. Patent and Trademark Office (USPTO).

Chronological Developments:

• 2026-04-21: Complaint Filed
  Atlas Global Technologies LLC filed a complaint for patent infringement against Walmart Inc. in the U.S. District Court for the Eastern District of Texas (Case 2:26-cv-00317). The case was assigned to District Judge Rodney Gilstrap and referred to Magistrate Judge Roy S. Payne. Along with the complaint, Atlas filed a disclosure statement identifying its corporate parents as Acacia Research Corporation and Acacia Research Group LLC.

• 2026-04-21: Summons Issued
  The court issued a summons for Walmart Inc., officially notifying the company of the lawsuit. As of this date, Walmart's formal response to the complaint, such as an Answer or a motion to dismiss, has not yet been filed on the public docket.

Parallel USPTO Proceedings:

Crucially, the patents asserted against Walmart are simultaneously being challenged at the USPTO in ex parte reexamination proceedings, primarily initiated by the patent-defense consortium Unified Patents. These proceedings, which assess whether there are "substantial new questions of patentability" in light of prior art, could significantly impact the district court case. A successful challenge at the USPTO can lead to the invalidation of patent claims, weakening or entirely negating Atlas's infringement allegations.

The status of the patents-in-suit at the USPTO is as follows:

• U.S. Patent No. 10,965,425:

  • 2026-01-21: Unified Patents filed a request for ex parte reexamination.
  • 2026-04-08: The USPTO's Central Reexamination Unit (CRU) granted the request, instituting the reexamination after finding "substantial new questions of patentability on all challenged claims." This is a significant development, as it indicates the patent faces a credible validity challenge.

• U.S. Patent No. 10,348,471:

  • 2025-12-22: Unified Patents filed a request for ex parte reexamination. The current status of this request (whether it has been granted, denied, or is pending) is not yet publicly available.

• U.S. Patent No. 10,020,919:

  • 2026-03-27: Unified Patents filed a request for ex parte reexamination. The status of this request is also pending.

• U.S. Patent No. 9,628,310:

  • 2026-02-27: Unified Patents filed a request for ex parte reexamination. The status of this request is pending.

Anticipated Future Developments:

Given the early stage of the litigation and the active reexaminations, the next steps will likely include:

1. Walmart's Response: Walmart is expected to file its Answer to the complaint, potentially including counterclaims for non-infringement and invalidity. Alternatively, Walmart could file a motion to dismiss under Rule 12(b)(6) or a motion to transfer venue out of the Eastern District of Texas.
2. Motion to Stay: With the USPTO having already instituted reexamination on the '425 patent and with requests pending for the other three, it is highly probable that Walmart will file a motion to stay the district court case. Defendants often argue a stay is warranted to simplify issues, reduce litigation costs, and avoid inconsistent rulings between the court and the USPTO, pending the outcome of the administrative reviews. Judge Gilstrap has broad discretion in deciding whether to grant such a stay.
3. Scheduling and Discovery: If the case is not stayed, the parties will proceed with a scheduling conference to set deadlines for discovery, claim construction (Markman) hearings, and other pre-trial milestones.

The case's trajectory will be heavily influenced by the outcomes of the parallel USPTO proceedings. A final rejection of the claims in reexamination could lead to a swift resolution of the corresponding infringement claims in district court.

Counsel for Plaintiff Atlas Global Technologies LLC

Based on a review of the initial complaint filed on April 21, 2026, and other publicly available information, the following attorneys have appeared on behalf of the plaintiff, Atlas Global Technologies LLC.

Lead Counsel:

• Name: To be determined.
  • Note: While multiple attorneys are listed on the initial filings, a lead counsel has not yet been formally designated on the public docket.

Attorneys of Record:

• Name: Justin F. Boyce

  • Role: Of Counsel
  • Firm: So far unnamed in filings, but public records indicate a practice in Sunnyvale, California.
  • Experience Note: Boyce is a registered patent attorney with a background in electrical engineering and experience in all phases of patent litigation for companies in the electronics, semiconductor, and computer industries.

• Name: Garret A. Leach

  • Role: Of Counsel
  • Firm: Kirkland & Ellis LLP (Chicago)
  • Experience Note: Leach is a nationally recognized first-chair trial lawyer focusing on patent and intellectual property litigation, with extensive experience in district courts, the ITC, and at the Federal Circuit.

• Name: Davis L. W. L. M. Tieg

  • Role: Of Counsel
  • Firm: So far unnamed in filings.
  • Experience Note: No specific information regarding this attorney's experience is readily available from public sources.

• Name: J. Mark Mann

  • Role: Local Counsel
  • Firm: Mann | Tindel | Thompson (Offices in Henderson and Tyler, Texas)
  • Experience Note: Mann is a veteran Texas litigator with a practice that includes intellectual property litigation and extensive experience in the Eastern District of Texas.

• Name: Andy Tindel

  • Role: Local Counsel
  • Firm: Mann | Tindel | Thompson (Tyler, Texas)
  • Experience Note: Tindel has a broad litigation practice that includes intellectual property and is board certified in Civil Appellate Law, Civil Trial Law, and Personal Injury Trial Law.

• Name: G. Blake Thompson

  • Role: Local Counsel
  • Firm: Mann | Tindel | Thompson (Tyler, Texas)
  • Experience Note: Thompson's practice areas include business litigation and intellectual property litigation.

Counsel for Defendant Walmart Inc.

As of May 1, 2026, counsel for the defendant, Walmart Inc., has not yet formally appeared on the public docket for case number 2:26-cv-00317.

The lawsuit was filed on April 21, 2026, and a summons was issued to Walmart on the same day. Typically, a defendant has 21 days after being served with the summons and complaint to file a response, such as an answer or a motion. This period may be extended by agreement or court order.

Given the early stage of the litigation, it is anticipated that Walmart's legal representatives will file a notice of appearance in the coming weeks. Until such a filing is made, the specific outside counsel and in-house attorneys assigned to this case remain unknown. It is common for a large corporation like Walmart to retain national patent litigation counsel as well as local counsel in the Eastern District of Texas.

In-House Counsel:

While no in-house counsel has formally appeared, Walmart's intellectual property litigation is managed by its internal legal department. Publicly available information indicates key figures in this group include:

• Name: Sri Atluri
  • Role: Chief IP Counsel (In-house)
  • Firm: Walmart
  • Note: Atluri oversees Walmart's strategies for managing IP portfolios, reducing IP risks, and handling litigation.

It is probable that members of Walmart's internal IP litigation team will be involved in managing the case, though they may not be listed as attorneys of record on the docket.