IOT Innovations LLC v. ADT LLC

Case Overview: NPE Asserts Acquired Patent Against Home Security Giant

This patent infringement action pits IOT Innovations LLC, a non-practicing entity (NPE), against ADT LLC, a major provider of home and business security solutions. IOT Innovations is an entity associated with Empire IP LLC, a firm known for acquiring patents and generating revenue through assertion and litigation campaigns. This case appears to be part of a broader assertion strategy by IOT Innovations, which acquired a portfolio of patents from Intellectual Ventures LLC and has filed suit against other companies in the "Internet of Things" (IoT) and smart home sector. The defendant, ADT, is one of the oldest and largest security companies in the United States, offering a wide range of products including monitored alarm systems, video surveillance, and smart home automation for millions of residential and commercial customers.

The lawsuit, filed in the U.S. District Court for the Eastern District of Texas, accuses ADT's smart home security systems, including their control panels and connected devices, of infringing U.S. Patent No. 7,593,428. The patent, titled "System and method for interfacing with a plurality of wireless transceivers," generally relates to a communication system that can manage and interface with multiple wireless devices using different protocols. The core of the infringement allegation likely centers on how ADT's security hubs communicate with and control a variety of sensors and smart home gadgets (e.g., door locks, thermostats, cameras) that may operate on different wireless standards. While the specific ADT products have not been detailed in publicly available documents, the accused technology is fundamental to modern, integrated smart home and security platforms.

The case is proceeding in the Marshall Division of the Eastern District of Texas, a venue historically favored by patent plaintiffs for its experienced judiciary, plaintiff-friendly reputation, and relatively fast trial schedules. Although its dominance waned after the Supreme Court's 2017 TC Heartland decision on venue, the district has recently seen a resurgence in patent filings, once again becoming a top forum for such litigation. This case is notable as it represents a classic NPE assertion model: a recently-formed entity is leveraging an acquired, older patent to target a large, established operating company in a technology sector (the IoT) that is rife with complex, multi-component systems, making it a fertile ground for infringement claims. The outcome may be influenced by parallel validity challenges at the Patent Trial and Appeal Board (PTAB), a common defensive strategy for companies targeted by frequent patent asserters.

Key Legal Developments and Case Status

As of May 7, 2026, the patent infringement litigation between IOT Innovations LLC and ADT LLC remains in its early stages. Public docket information reveals the initial filings and procedural assignments, but substantive rulings on motions, claim construction, or the patent's validity have not yet occurred. The case follows a pattern typical of litigation initiated by non-practicing entities (NPEs) in the Eastern District of Texas.

Chronological Case Developments:

• 2023-09-27: Complaint Filed
  IOT Innovations LLC filed its complaint against ADT LLC, alleging infringement of U.S. Patent No. 7,593,428. The case was assigned to the Marshall Division of the Eastern District of Texas, a popular venue for patent litigation. The filing is consistent with a broader litigation campaign by IOT Innovations, an entity associated with Empire IP LLC, which has sued numerous companies in the smart home and Internet of Things (IoT) sector.

• Subsequent Procedural Posture:
  Following the complaint, the case would have proceeded through standard initial phases, including service of process on the defendant, ADT. The public record does not yet contain ADT's answer or any counterclaims, which would typically be filed within weeks of receiving the complaint. There is no public record of significant early motions, such as a motion to dismiss for failure to state a claim or a motion to transfer venue away from the Eastern District of Texas. Such motions are common defensive strategies for large companies like ADT in response to NPE lawsuits. The case has been assigned to Judge Rodney Gilstrap and referred to Magistrate Judge Roy S. Payne, both of whom have extensive experience with patent disputes.

• Current Status & Anticipated Next Steps:
  The case is currently open and pending. Given the early stage of the litigation, the next key events will likely include:

  • ADT's Answer and Counterclaims: ADT's official response to the complaint will outline its defenses, such as non-infringement and invalidity of the '428 patent, and may include counterclaims seeking a declaratory judgment to that effect.
  • Scheduling Order: The court will issue a scheduling order setting deadlines for discovery, claim construction (Markman) briefing, dispositive motions, and a potential trial date.
  • Discovery: Both parties will engage in fact and expert discovery, exchanging documents and taking depositions related to the infringement and validity contentions.
  • Claim Construction: A Markman hearing will be a critical phase where the court determines the legal meaning of disputed terms in the patent's claims. This ruling often shapes the prospects of settlement or summary judgment. As of early 2025, an analysis of IOT Innovations' parent, Empire IP, noted that only a small fraction of their cases typically proceed to a Markman hearing, with a high percentage settling beforehand.

Parallel PTAB Proceedings:

A search of the USPTO's Patent Trial and Appeal Board (PTAB) database does not show any Inter Partes Review (IPR) or other post-grant proceedings filed specifically by ADT against U.S. Patent No. 7,593,428. However, it is a common defensive tactic for defendants in ADT's position to file an IPR petition seeking to have the PTAB invalidate the asserted patent. Such a filing often leads the defendant to file a motion to stay the district court litigation pending the PTAB's decision. The absence of a public filing to date does not preclude one from being filed in the near future.

The case's trajectory will likely mirror other litigation brought by IOT Innovations, where many defendants have settled before significant litigation milestones are reached. The outcome could be a confidential settlement and license agreement, or, if ADT chooses to litigate, it could proceed through claim construction and summary judgment, with the possibility of a parallel IPR challenge influencing the timeline and resolution.

Plaintiff's Counsel: Rozier Hardt McDonough PLLC

Based on notices of appearance in numerous other patent cases filed by IOT Innovations LLC, the plaintiff is represented by attorneys from the intellectual property litigation boutique Rozier Hardt McDonough PLLC. While the specific notice of appearance for the ADT case (2:23-cv-00453) was not publicly available, this firm is consistently named as counsel for the plaintiff in its broader litigation campaign.

The legal team is led by the firm's founding partners, who have extensive experience in patent assertion and litigation, particularly in Texas courts.

Name	Role	Firm	Office Location	Noted Experience
Carey Matthew Rozier	Lead Counsel	Rozier Hardt McDonough PLLC	Denver, CO	An engineer and registered patent attorney, he has litigated patent cases across the U.S. and before the ITC for clients ranging from startups to Fortune 100 companies.
Jonathan Lloyd Hardt	Lead Counsel	Rozier Hardt McDonough PLLC	Austin, TX	Focuses on patent and trade secret litigation, having served as lead attorney in ITC proceedings and clerked in the Eastern District of Texas for Hon. David Folsom.
James Francis McDonough, III	Lead Counsel	Rozier Hardt McDonough PLLC	Atlanta, GA	A lawyer and technologist who has served as lead counsel in hundreds of technology-focused cases, including patent litigation, class actions, and MDLs.

This legal team's consistent representation of IOT Innovations across its litigation campaign, including cases against defendants like Resideo Technologies and D-Link, indicates they are the primary counsel driving the assertion effort. The firm and its partners are identified in court filings and dockets as counsel for IOT Innovations LLC in various patent infringement suits in the Eastern District of Texas and other jurisdictions.

Counsel for Defendant ADT LLC

As of the current date, counsel for the defendant, ADT LLC, has not yet formally appeared on the public docket for the case IOT Innovations LLC v. ADT LLC, Case No. 2:23-cv-00453, in the Eastern District of Texas.

Searches of court records and legal news databases do not show any filed notices of appearance, answers, or motions on behalf of ADT. This is not unusual in the early stages of a case, as a defendant has a specific timeframe to respond after being served with the complaint.

Given ADT's status as a major corporation frequently involved in litigation, it is anticipated that they will be represented by a national law firm with a strong patent litigation practice, along with local counsel in Texas. However, until an attorney officially files a notice of appearance with the court, the specific individuals and firms representing ADT remain unconfirmed. No documents naming defense counsel are publicly available at this time.