IOT Innovations LLC v. Alphabet Inc.

Patent Infringement Suit Targets Google's Smart Home and Streaming Devices

CHICAGO, IL - In a lawsuit filed in the U.S. District Court for the Northern District of Illinois, IOT Innovations LLC has accused Alphabet Inc.'s Google of infringing a patent related to wireless communication technology. The case centers on allegations that Google's popular Chromecast, Nest, and other smart home and streaming products utilize patented methods for managing data transmission in a wireless system.

The plaintiff, IOT Innovations LLC, is a non-practicing entity (NPE) and appears to be associated with Empire IP LLC, a firm known for acquiring patents and generating revenue through licensing and litigation. This business model, often referred to as a "patent assertion entity" (PAE), involves enforcing patent rights against companies that manufacture or sell technology, rather than producing products based on the patents themselves. IOT Innovations has been active in asserting its patent portfolio, which it acquired from Intellectual Ventures LLC in 2022, against various companies in the Internet of Things (IoT) space. The defendant, Alphabet Inc., is the parent company of Google, a multinational technology giant whose products and services are deeply integrated into the consumer electronics and internet services markets. Google has frequently been a target of patent infringement lawsuits.

The sole patent at issue is U.S. Patent No. 7,593,428, titled "Method and system for providing an efficient acknowledgement scheme in a wireless communication system." In essence, the patent describes a technique for efficiently confirming the receipt of data packets in a wireless network, a fundamental aspect of technologies like Wi-Fi that underpin many modern connected devices. IOT Innovations claims that Google’s devices that support casting and operate within the Google Home ecosystem infringe upon this patented technology. The complaint was filed on December 18, 2023, in the Northern District of Illinois (Case 1:23-cv-09902).

The choice of the Northern District of Illinois is notable. While not as high-profile for patent cases as the Western District of Texas or the District of Delaware, it has seen a rise in patent litigation and is part of the federal judiciary's Patent Pilot Program. This program is designed to channel patent cases to judges with greater expertise in this complex area of law, which can lead to more predictable and efficient case management. The district also has a set of specific local rules for patent cases that structure the litigation process, covering key events from initial disclosures to claim construction. This case is significant as it represents another front in the broader assertion campaigns by NPEs against major technology companies, testing the value and validity of patents that relate to widely adopted standards and technologies in the booming IoT market. The outcome could impact licensing and product development strategies for numerous companies in the smart home and connected device sectors.

Key Legal Developments in IOT Innovations v. Alphabet

As of May 2026, the patent infringement lawsuit filed by IOT Innovations LLC against Alphabet Inc. in the Northern District of Illinois remains in its early stages, with limited public information available regarding substantive legal developments. The case docket, 1:23-cv-09902, shows the initial filings but lacks significant motion practice or court rulings that would indicate the litigation's trajectory.

Filing and Initial Pleadings

• 2023-12-18: Complaint Filed
  IOT Innovations LLC filed its complaint against Alphabet Inc., alleging that Google's products, including Chromecast and Nest devices, infringe upon U.S. Patent No. 7,593,428. The patent, titled "Method and system for providing an efficient acknowledgement scheme in a wireless communication system," relates to data transmission management in wireless networks.

At present, publicly accessible records and legal news databases do not contain information regarding Alphabet's answer to the complaint or any counterclaims it may have filed. This lack of information makes it difficult to ascertain Alphabet's formal legal strategy, including any non-infringement, invalidity, or unenforceability defenses.

Pre-trial Motions and Scheduling

There is no public record of significant pre-trial motions, such as motions to dismiss, transfer venue, or stay the case pending a patent review. Similarly, a comprehensive scheduling order detailing deadlines for discovery, claim construction, and dispositive motions has not been made publicly available through legal news reporting or docket aggregators. The case status is listed as "Open," indicating it has not been terminated.

Parallel PTAB Proceedings

A thorough search of the U.S. Patent and Trademark Office's Patent Trial and Appeal Board (PTAB) records reveals no Inter Partes Review (IPR) or other post-grant proceedings filed by Alphabet Inc. against U.S. Patent No. 7,593,428. This suggests that, as of the current date, Alphabet has not formally challenged the patent's validity before the PTAB, a common tactic for defendants in patent infringement cases.

Litigation by IOT Innovations Against Other Parties

While developments in the Alphabet case are sparse, IOT Innovations LLC has been active in litigating its patent portfolio against other technology companies. Court records show that IOT Innovations has filed similar lawsuits against other major tech companies, including a case against Savant Systems, Inc. that involved 22 patents and was resolved through mediation on favorable, yet undisclosed, terms. Another case, against Somfy Systems involving ten patents, was concluded in August 2024 by a joint stipulation of dismissal with prejudice, which typically indicates a settlement.

This pattern of litigation followed by settlement may offer a potential indicator for the future course of the instant case. IOT Innovations, identified as a non-practicing entity associated with Empire IP LLC, appears to pursue a strategy of monetizing its patent portfolio through enforcement actions that often conclude before reaching trial.

Current Posture and Outlook

The litigation is in a nascent phase. The absence of a publicly available answer from Alphabet or significant motions practice suggests that the parties may be engaged in early-stage discussions or that the case is proceeding slowly through the initial procedural steps mandated by the Northern District of Illinois's local patent rules. Given IOT Innovations' litigation history, a negotiated settlement and subsequent dismissal of the case remains a strong possibility. However, without further public docket activity or reporting, the case's ultimate outcome remains speculative.

Plaintiff's Counsel of Record

Based on a review of the court docket and other publicly available information, the following attorneys have appeared on behalf of the plaintiff, IOT Innovations LLC.

• Name: Brian E. Haan

  • Role: Lead Counsel
  • Firm: Haan, PLLC (Chicago, IL)
  • Note: Mr. Haan has extensive experience representing patent holders, including non-practicing entities (NPEs), in federal court litigation across the country.

• Name: Robert P. Greenspoon

  • Role: Of Counsel
  • Firm: Flachsbart & Greenspoon, LLC (Chicago, IL)
  • Note: Greenspoon is a veteran intellectual property litigator and has represented various patent assertion entities in campaigns against large technology companies.

• Name: Stamatios "Tom" M. Stamoulis

  • Role: Of Counsel
  • Firm: Stamoulis & Associates LLC (Wilmington, DE)
  • Note: Stamoulis frequently represents NPEs and has been involved in numerous patent assertion cases filed in various districts, including Delaware and Texas.

• Name: Richard C. Weinblatt

  • Role: Of Counsel
  • Firm: Stamoulis & Associates LLC (Wilmington, DE)
  • Note: Weinblatt often works alongside Tom Stamoulis, representing patent-holding companies in infringement litigation against a wide range of defendants.

Defendant's Counsel of Record

Based on court filings, Alphabet Inc. is represented by attorneys from the law firm Quinn Emanuel Urquhart & Sullivan, LLP. The legal team that has formally appeared is composed of experienced patent litigators from the firm's Chicago office.

• Name: David A. Nelson

  • Role: Lead Counsel
  • Firm: Quinn Emanuel Urquhart & Sullivan, LLP (Chicago, IL)
  • Note: Mr. Nelson is the Co-Chair of Quinn Emanuel's National Intellectual Property Litigation Practice and is a nationally recognized patent trial lawyer with extensive experience leading high-stakes litigation for major technology companies.

• Name: Samuel S. Lee

  • Role: Of Counsel
  • Firm: Quinn Emanuel Urquhart & Sullivan, LLP (Chicago, IL)
  • Note: Mr. Lee's practice focuses on intellectual property matters, including patent litigation and licensing, with a background in electrical engineering and signal processing.

• Name: Charles W. Wirtz

  • Role: Of Counsel
  • Firm: Quinn Emanuel Urquhart & Sullivan, LLP (Chicago, IL)
  • Note: Mr. Wirtz is a trial attorney whose background includes experience in complex commercial litigation.