DCT

5:26-cv-00082

Fall Line Patents LLC v. IKEA Systems BV

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Amended Complaint
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I. Executive Summary and Procedural Information

  • Parties & Counsel:
  • Case Identification: 5:26-cv-00082, E.D. Tex., 09/29/2026
  • Venue Allegations: Plaintiff alleges venue is proper because Defendant Inter IKEA Systems B.V. is a foreign entity, and the other IKEA defendants have transacted business in the district and maintain a regular and established place of business, specifically citing an IKEA store in Frisco, Texas.
  • Core Dispute: Plaintiff alleges that Defendant’s IKEA Mobile App, in conjunction with its servers, infringes a patent related to systems for creating and executing location-specific questionnaires on remote computing devices.
  • Technical Context: The technology addresses methods for collecting data from diverse, handheld computing devices in environments with intermittent network connectivity, using device-independent code to enable cross-platform compatibility.
  • Key Procedural History: The complaint notes that the asserted patent family was previously litigated in Fall Line Patents, LLC v. Zoe's Kitchen, Inc., where the court denied a motion to dismiss on patent eligibility grounds and later granted summary judgment of validity under 35 U.S.C. § 101. The patent-in-suit, U.S. Patent No. 9,454,748, has also survived multiple Inter Partes Review (IPR) proceedings. Notably, the sole asserted claim in this complaint, Claim 7, was found patentable in IPR2019-00610, while other claims were cancelled in that and a separate IPR proceeding.

Case Timeline

Date Event
2002-08-19 '748 Patent Priority Date
2016-09-27 '748 Patent Issue Date
2021-05-25 Order in Zoe's Kitchen litigation denying motion to dismiss
2022-12-19 IPR Certificate issued (IPR2019-00610), confirming patentability of Claim 7
2023-06-29 Order in Zoe's Kitchen litigation granting summary judgment of validity
2023-08-22 IPR Certificate issued (IPR2018-00043), cancelling claims 16-18
2026-09-29 Complaint Filing Date

II. Technology and Patent(s)-in-Suit Analysis

  • Patent Identification: U.S. Patent No. 9,454,748 (“the ’748 Patent”), “System and Method for Data Management,” issued September 27, 2016.

The Invention Explained

  • Problem Addressed: The patent describes challenges in the early 2000s with collecting data on handheld computers, which often had different operating systems and hardware, requiring developers to create costly, device-specific applications (Compl. ¶¶29-31; ’748 Patent, col. 1:49-2:2). Furthermore, these devices frequently operated in areas with limited or intermittent network connectivity, making real-time data transfer to a central server unreliable ’748 Patent, col. 3:64-4:1 Compl. ¶29
  • The Patented Solution: The invention proposes a system that uses "device-indifferent tokens" to represent a data collection program, or "questionnaire" ’748 Patent, col. 10:31-35 This tokenized approach allows a single program to be executed on various types of remote devices without recompilation ’748 Patent, col. 5:21-32 The system is designed for "loosely networked" environments, where it can store data locally if a network connection is unavailable and automatically transmit it once a connection is restored ’748 Patent, col. 5:7-12
  • Technical Importance: The technology aimed to provide a write-once, run-anywhere framework for mobile data collection, reducing development costs and improving data integrity for enterprise applications in fields like inventory management, field service, and market research (Compl. ¶¶15; Compl. ¶32).

Key Claims at a Glance

  • The complaint identifies independent Claim 7 as being infringed Compl. ¶19
  • The essential elements of Claim 7 are:
    • Designing a "questionnaire" customized for a "particular location" with "branching logic" and a request for "location identifying information."
    • Automatically transferring the questionnaire to a "loosely networked computer" with an integrated GPS.
    • Executing the questionnaire on the device when it is at the "particular location" to collect user responses.
    • While executing, "using said GPS to automatically provide said location identifying information as a response."
    • Automatically transferring collected responses "in real time" to a central computer via the "loose network."
    • Making the transferred responses available via the Internet.
  • The complaint’s prayer for relief seeks judgment on "one or more claims" but does not specify any dependent claims Compl., prayer "a"

III. The Accused Instrumentality

  • Product Identification: The "IKEA Mobile App" operating in conjunction with "IKEA servers" Compl. ¶18
  • Functionality and Market Context:
    • The complaint alleges that the IKEA Mobile App and its associated servers collectively "create and execute a location-specific questionnaire to collect responses from users" Compl. ¶18
    • The functionality is described at a high level, with allegations that the app is used to direct customers to stores and process orders, which implies the use of location data Compl. ¶13
    • The complaint positions the accused system as a critical customer-facing tool for IKEA, which it identifies as the "largest global designer and seller of home furnishings" Compl. ¶5
    • No probative visual evidence provided in complaint.

IV. Analysis of Infringement Allegations

The complaint provides a high-level, notice-pleading style of infringement allegation, mapping the accused system directly to the language of Claim 7 without extensive technical evidence.

  • ’748 Patent Infringement Allegations
Claim Element (from Independent Claim 7) Alleged Infringing Functionality Complaint Citation Patent Citation
(a) designing a questionnaire including at least one question said questionnaire customized for a particular location having branching logic...wherein at least one...questions requests location identifying information; IKEA allegedly creates and designs location-specific questionnaires on its servers for use in the IKEA Mobile App. ¶18 col. 13:47-53
(b) automatically transferring said designed questionnaire to at least one loosely networked computer having a GPS integral thereto; The IKEA Mobile App (the "questionnaire") is allegedly transferred from IKEA's servers to users' mobile devices, which are described as loosely networked computers with GPS. ¶18; ¶22 col. 13:54-57
(c) when said loosely networked computer is at said particular location, executing said transferred questionnaire...thereby collecting responses from the user; The IKEA Mobile App allegedly executes on a user's device when the user is at a specific location, and the user provides responses through the app. ¶18 col. 13:58-62
(d) while said transferred questionnaire is executing, using said GPS to automatically provide said location identifying information as a response to said executing questionnaire; The IKEA Mobile App allegedly uses the device's GPS to automatically provide location information as a response within the app's workflow. ¶18; ¶34 col. 13:63-66
(e) automatically transferring via the loose network any responses so collected in real time to a central computer; and, The IKEA Mobile App allegedly transfers user responses and collected data over a network in real time to IKEA's servers. ¶18 col. 13:67-col. 14:2
(f) making available via the Internet any responses transferred to said central computer in step (e). The data collected from users is allegedly made available to IKEA via the internet for its business purposes. ¶18 col. 14:3-5
  • Identified Points of Contention:
    • Scope Question: A central point of contention may be whether the interactive, location-aware features of a modern retail application like the IKEA Mobile App constitute a "questionnaire" as that term is used in the patent. The defense may argue the term implies a more formal, survey-like instrument as detailed in the patent's 'mystery shopper' embodiment ’748 Patent, col. 9:37-54, whereas the plaintiff may argue it covers any system that prompts for and collects user data based on location.
    • Technical Question: Claim 7(d) requires that the GPS provides location information "as a response" to the questionnaire. A potential dispute is whether the IKEA app uses location data as a direct, explicit response to a prompt, or merely as a background parameter to filter or present content. The latter may not meet the specific functional language of the claim.
    • "Real Time" Transfer: The claim requires transferring responses "in real time" ’748 Patent, col. 14:1 However, the specification also defines "loosely networked" to include storing data for later transmission if a connection is unavailable ’748 Patent, col. 5:7-12 The analysis may turn on how the accused app functions under different network conditions and how the court interprets "real time" in the context of a system designed to tolerate network interruptions.

V. Key Claim Terms for Construction

  • The Term: "questionnaire"
    • Context and Importance: This term is fundamental to the claim's scope. The infringement case depends on whether the functionality of the IKEA Mobile App can be characterized as a "questionnaire." Practitioners may focus on this term because its interpretation could either limit the patent to formal data-gathering tools or expand it to cover a wide range of modern, location-aware mobile applications.
    • Intrinsic Evidence for a Broader Interpretation: The patent describes a questionnaire as a "series of questions or statements, each of which calls for a response," which could be argued to encompass any interactive prompts in a software application ’748 Patent, col. 8:28-30
    • Intrinsic Evidence for a Narrower Interpretation: The detailed embodiments focus on structured data collection tasks, such as a mystery shopper report or medical intake forms, suggesting a more formal, survey-like meaning ’748 Patent, col. 9:37-54 '748 Patent, col. 11:43-54
  • The Term: "customized for a particular location"
    • Context and Importance: The definition of this phrase will determine the degree of location-specificity required to infringe. The dispute may focus on whether simply presenting location-relevant information (e.g., the nearest store) is sufficient, or if the "questionnaire" itself must be substantively altered for that location.
    • Intrinsic Evidence for a Broader Interpretation: The language could be interpreted to cover any system where the content or user prompts change based on the user's geographic position.
    • Intrinsic Evidence for a Narrower Interpretation: The patent describes creating a questionnaire to "collect information regarding service at that establishment," suggesting the questions are specifically authored about a particular location, not just filtered by location ’748 Patent, col. 9:35-44

VI. Other Allegations

  • Indirect Infringement: The complaint alleges induced infringement, stating that IKEA encourages its customers to use the mobile app in an infringing manner through advertising, promotion, and instructions Compl. ¶23 It also pleads contributory infringement, asserting the app has special features with no substantial non-infringing use Compl. ¶24
  • Willful Infringement: Willfulness is alleged based on a theory of willful blindness, with the plaintiff claiming IKEA has a "policy or practice of not reviewing the patents of others" Compl. ¶25 The complaint further alleges that IKEA’s actions were "objectively reckless" Compl. ¶26

VII. Analyst’s Conclusion: Key Questions for the Case

  • Definitional Scope: A core issue will be one of definitional scope: can the term "questionnaire", rooted in the patent’s context of structured data collection forms, be construed to read on the interactive, location-aware features of a modern commercial retail application?
  • Functional Mismatch: A key evidentiary question will be one of functional operation: does the accused system use GPS data "as a response" to a prompt, as explicitly required by Claim 7, or does it use location merely as a background trigger for content, potentially creating a technical mismatch with the claim language?
  • Impact of Patent History: The asserted Claim 7 has survived an inter partes review and the patent family has been found valid under § 101 in a previous case against a different defendant. A significant question will be what weight, if any, the court gives to this prosecution and litigation history when assessing the patent's validity and scope in the current dispute.