Untitled case

Case Overview and Background: Integral Wireless Technologies LLC v. D-Link Systems, Inc.

This patent infringement litigation, case number 7:26-cv-00121, is currently underway in the Western District of Texas. The plaintiff, Integral Wireless Technologies LLC, is identified as a Texas-based patent monetization firm, often referred to as a Non-Practicing Entity (NPE) or Patent Assertion Entity (PAE). Integral Wireless Technologies was established in September 2024 and is associated with Empire IP LLC, having acquired a portfolio of patents, including U.S. Patent 8,139,544, from Intellectual Ventures LLC (IV). The defendant, D-Link Systems, Inc., is an operating company known for manufacturing networking hardware such as routers, Wi-Fi adapters, and other communication devices.

The lawsuit alleges that D-Link's products and services infringe U.S. Patent 8,139,544. While the specific accused products for this case were not explicitly detailed in publicly available summaries of the complaint, Integral Wireless Technologies has previously accused D-Link's server systems, 5G compatible devices, 802.11n compatible devices, HEVC compatible devices, and Bluetooth compatible devices in related infringement campaigns. U.S. Patent 8,139,544, titled "System and method for supporting data flow in a wireless communication system," generally describes techniques to improve data transfer efficiency in wireless communication environments.

The procedural posture places this case in the U.S. District Court for the Western District of Texas, presided over by District Judge David Counts, with Magistrate Judge Derek T. Gilliland also assigned. Judge Counts typically presides over cases in the Midland/Odessa and Pecos Divisions of the court. The Western District of Texas has gained significant attention as a popular venue for patent infringement plaintiffs, largely due to its reputation for fast-paced litigation schedules, particularly before a prior change in its case assignment system. The case is notable as part of a broader assertion campaign by Integral Wireless Technologies, leveraging patents acquired from Intellectual Ventures, a common pattern for NPEs seeking to monetize intellectual property. As of the current date, there are no publicly reported Inter Partes Review (IPR) proceedings specifically challenging U.S. Patent 8,139,544 at the Patent Trial and Appeal Board (PTAB).

Key Legal Developments and Outcome for Case 7:26-cv-00121 (Western District of Texas)

This patent infringement litigation, Case No. 7:26-cv-00121, was filed in the U.S. District Court for the Western District of Texas. The patent at issue is US Patent 8139544. As of May 29, 2026, the case is in its very early stages.

Filing & Initial Pleadings:

• Plaintiff: Integral Wireless Technologies.
• Defendant: The full name of the defendant is not yet publicly available through general web searches. However, the case is identified as "Integral_Wireless_Technologies_v_D...".
• Complaint: A Complaint for Patent Infringement, demanding a jury trial, has been filed in the Western District of Texas.
• Filing Date: Given the case number "7:26-cv-00121," the case was filed in 2026. The precise filing date and the content of the complaint beyond identifying it as a patent infringement suit are not yet publicly detailed in general search results.

Pre-trial motions of substance: Due to the recent filing year (2026) and the current date (May 29, 2026), there have been no publicly reported significant pre-trial motions such as motions to dismiss, transfer, stay pending IPR, or summary judgment.

Claim construction (Markman) outcomes: The case has not reached the claim construction stage, given its nascent status.

Discovery milestones: No discovery milestones have been reported as the case is in its initial phase.

Trial events, verdict, and post-trial motions: There have been no trial events, verdict, or post-trial motions.

Settlement, dismissal, judgment, or appeal: There has been no final disposition of the case, and it remains active in its early stages.

Parallel PTAB IPR/PGR proceedings: Searches for Inter Partes Review (IPR) or Post-Grant Review (PGR) proceedings concerning US Patent 8139544 at the Patent Trial and Appeal Board (PTAB) of the USPTO have not yielded any specific results. Therefore, no parallel PTAB proceedings appear to be ongoing for the asserted patent.

In the patent infringement case Integral Wireless Technologies LLC v. D-Link Systems, Inc., case number 7:26-cv-00121 in the Texas Western District Court, the plaintiff, Integral Wireless Technologies LLC, is represented by attorneys from Rozier Hardt McDonough PLLC.

The identified counsel of record for the plaintiff are:

• James Francis McDonough, III

  • Role: Lead Counsel
  • Firm: Rozier Hardt McDonough PLLC
  • Office Location: While specific office locations for individual attorneys were not immediately found, Rozier Hardt McDonough PLLC is noted to represent Integral Wireless, a Texas monetization firm.
  • Experience Note: Mr. McDonough is listed as filing the initial complaint and a request for summons in this case and also represents Integral Wireless Technologies LLC in other patent infringement cases, including in the Eastern District of Texas, involving patent 8139544.

• Carey Matthew Rozier

  • Role: Counsel
  • Firm: Rozier Hardt McDonough PLLC
  • Office Location: While specific office locations for individual attorneys were not immediately found, Rozier Hardt McDonough PLLC is noted to represent Integral Wireless, a Texas monetization firm.
  • Experience Note: Mr. Rozier is listed as representing Integral Wireless Technologies LLC in other related patent litigation matters.

• Jonathan Lloyd Hardt

  • Role: Counsel
  • Firm: Rozier Hardt McDonough PLLC
  • Office Location: While specific office locations for individual attorneys were not immediately found, Rozier Hardt McDonough PLLC is noted to represent Integral Wireless, a Texas monetization firm.
  • Experience Note: Mr. Hardt is listed as representing Integral Wireless Technologies LLC in other related patent litigation matters.

It is also noted that Daniel Mitry and Timothy Salmon, founders of Empire IP, are managing members of Integral Wireless Technologies LLC. While they hold principal roles within the plaintiff entity, the request specifically pertains to counsel of record appearing in the litigation.

Despite extensive web searches for publicly available docket entries, specific counsel of record representing D-Link Systems, Inc. in the case 7:26-cv-00121 in the Texas Western District Court could not be definitively identified. Direct access to PACER to review detailed docket entries for attorney appearances was not available.

However, based on D-Link Corporation's representation in a related patent infringement case in the Eastern District of Texas (Encryptawave Technologies LLC v. D-Link, Corp., Case No. 4:24-cv-00257), it is highly probable that Pillsbury Winthrop Shaw Pittman LLP is representing D-Link Systems, Inc. in the current Western District of Texas case. Pillsbury has a significant intellectual property litigation practice with a strong presence in Texas.

Based on this strong inference, the likely counsel for D-Link Systems, Inc. would include:

• Edward A. Cavazos
  • Role: Likely Lead Counsel or a key member of the patent litigation team.
  • Firm: Pillsbury Winthrop Shaw Pittman LLP, with offices in Austin, TX, and Houston, TX.
  • Relevant Patent Litigation Experience: Edward Cavazos specializes in patent litigation and counseling, providing strategic guidance to clients in the technology and retail industries. Pillsbury's Intellectual Property Litigation practice has over 100 IP lawyers and professionals and is recognized for achieving winning results in patent cases, including arguing numerous claim construction hearings and successfully defending clients in complex patent infringement matters. The firm is ranked for its IP litigation and patent law expertise nationally and in Texas.