THL Holding Co LLC v. Apple Inc

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: THL Holding Company, LLC (Delaware)
  • Defendant: Apple, Inc. (California)
  • Plaintiff’s Counsel: Brooks Kushman P.C.; Parker, Bunt & Ainsworth, P.C.
• Case Identification: 6:26-cv-00086, W.D. Tex., 02/11/2026
• Venue Allegations: Plaintiff asserts that venue is proper in the Western District of Texas because Defendant Apple maintains regular and established places of business in the district, including its second-largest U.S. campus, and has committed acts of alleged infringement there. Plaintiff THL is also headquartered in the district.
• Core Dispute: Plaintiff alleges that Defendant’s iPhone models, when used with accessories like AirTags and AirPods Pro, infringe two patents related to systems and methods for wirelessly locating remote devices.
• Technical Context: The technology at issue involves using a primary mobile device, such as a smartphone, to locate secondary, portable wireless tags attached to personal items like keys or wallets.
• Key Procedural History: The complaint alleges that in November 2011, representatives from Plaintiff THL and its related company met with Apple under a non-disclosure agreement to provide a presentation and live demonstration of its "BIKN" product, which embodied the patented technology. The complaint states that Apple did not pursue a business relationship with THL following the meeting.

Case Timeline

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

U.S. Patent No. 11,350,246 - Wireless device and methods for use therewith

(Issued May 31, 2022)

The Invention Explained

• Problem Addressed: The complaint describes the patents-in-suit as addressing the need for "an interactive computing interface for the location and finding of connected hardware devices" in a "unique and efficient process" Compl. ¶32
• The Patented Solution: The complaint alleges the patents provide "specific, non-conventional improvements to existing computer devices" for locating remote hardware Compl. ¶32 The complaint does not provide sufficient detail to analyze the specific solution claimed by the '246 Patent, instead grouping it with the '680 patent's technology.
• Technical Importance: The complaint frames the technology as pioneering, stating that THL "sought to change the way in which hardware and software operated together" Compl. ¶14

Key Claims at a Glance

• The complaint asserts independent claim 30 Compl. ¶44 The full text of the claim is not provided in the complaint.

U.S. Patent No. 11,265,680 - Wireless device and Methods for use in a paging network

(Issued March 1, 2022)

The Invention Explained

• Problem Addressed: The patent's background describes the problem of users misplacing important items, including their wireless telephones, which can be an "annoying experience" ’680 Patent, col. 2:39-41
• The Patented Solution: The invention proposes a three-part location system consisting of a "handheld wireless communication device" (e.g., a smartphone), an "adjunct device" that physically couples to the handheld device's communication port, and a separate "remote wireless device" (e.g., a tag) attached to a personal item ’680 Patent, abstract ’680 Patent, FIG. 1 The adjunct device acts as an intermediary, containing a short-range wireless transceiver that can send a paging signal to the remote device or receive a paging signal from it, enabling the user to locate either the handheld device or the tagged item ’680 Patent, col. 5:36-6:2 ’680 Patent, col. 8:46-54
• Technical Importance: This architecture allows a standard smartphone, which may not have the necessary short-range radio hardware, to be augmented with location/paging capabilities through a modular, attachable accessory.

Key Claims at a Glance

• The complaint asserts independent claim 13 and dependent claim 14 Compl. ¶52
• The essential elements of independent claim 13 are:
  • A mobile communication device comprising a plurality of wireless transceivers, a memory, and a touchscreen.
  • A processor configured to present a graphical user interface (GUI) on the touchscreen.
  • The processor operates with the GUI to respond to a user interaction by transmitting, via a wireless transceiver, a first paging signal to at least one remote device.
  • The paging signal causes the remote device to generate an audio alert.
  • The processor then presents a display on the touchscreen, based on a signal received from the remote device, that visually assists a user in determining the remote device's location.
• The complaint does not specify which dependent claims may be asserted in the future.

III. The Accused Instrumentality

Product Identification

The accused products are Apple's iPhone models 11 through 17, used in conjunction with Apple accessories including AirTags (First and Second Generation) and AirPods Pro (Second and Third Generation) Compl. ¶33

Functionality and Market Context

The complaint alleges that infringement occurs through the "precision locate" function within Apple's FindMy application Compl. ¶36 This feature, introduced with iOS 14.5, uses the U1 ultra-wideband (UWB) transceiver present in the accused iPhones and accessories to precisely locate the items Compl. ¶36 Compl. ¶38 The complaint also points to a feature introduced in iOS 17 that allows an AirTag to be shared with and located by another iPhone user Compl. ¶40 The complaint highlights the commercial timeline of these products, noting the introduction of the UWB-enabled iPhone 11 in September 2019, followed by the first AirTag in April 2021 Compl. ¶34 Compl. ¶35 The complaint includes a photograph of the plaintiff's BIKN product and its packaging to draw a parallel with the accused functionality Compl. ¶18

IV. Analysis of Infringement Allegations

The complaint references claim chart Exhibits C and D but does not attach them Compl. ¶45 Compl. ¶53 The infringement theory is therefore summarized from the complaint's narrative allegations.

For both the ’246 and ’680 patents, the plaintiff alleges that Apple's system—comprising an iPhone (models 11-17) running the FindMy application and communicating with an AirTag or AirPods Pro—practices the claimed invention Compl. ¶44 Compl. ¶52 The complaint alleges that the iPhone's user interface allows a user to initiate a location request, which causes the iPhone to transmit wireless signals to the accessory. The accessory then responds with signals that the iPhone uses to provide visual assistance (e.g., directional arrows and distance information) to the user via the "precision locate" feature, helping them find the lost item Compl. ¶¶36-38 The complaint includes screenshots from a 2012 video demonstrating the plaintiff's BIKN product at the Consumer Electronics Show, which shows a similar user interface for locating a tagged item Compl. ¶19

Identified Points of Contention

• Scope Questions: A primary question may be whether Apple's integrated system reads on the patent's disclosed architecture. Specifically, does the iPhone, as a single integrated device, perform the roles of both the "handheld wireless communication device" and the physically separate, port-coupled "adjunct device" as described and claimed in the '680 patent? The '680 patent repeatedly illustrates the adjunct device as a distinct hardware module physically connected to the handheld device '680 Patent, FIG. 2 '680 Patent, FIG. 3
• Technical Questions: Does the communication protocol between an iPhone and an AirTag constitute a "paging network" as the term is used in the '680 patent? The patent describes pairing devices to form such a network, which could include unicast or broadcast pages ’680 Patent, col. 16:1-21 The analysis may examine whether Apple's FindMy network, which leverages a vast, crowd-sourced system of Apple devices, fits within the scope of the "paging network" disclosed in the patent.

V. Key Claim Terms for Construction

• The Term: "adjunct device"
• Context and Importance: This term appears to be central to the architecture described in the '680 patent. The definition of "adjunct device" will be critical to determining whether Apple's integrated iPhone, which contains its own UWB transceiver, can be found to practice a key element of the claimed invention, or if the claim requires a physically separate, attachable module.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: A party could argue the term should be defined functionally. The patent describes the adjunct device's function as including a short-range wireless receiver and a user interface to assist in locating the handheld device '680 Patent, col. 5:42-53 One might argue that any components performing these functions, even if integrated into the main handheld device's housing, meet the definition.
  • Evidence for a Narrower Interpretation: The specification consistently depicts the "adjunct device" (100) as a separate housing that is "coupleable to the handheld wireless communication device" (110) via a communication port and plug (26, 26') '680 Patent, col. 6:5-14 '680 Patent, FIG. 2 '680 Patent, FIG. 3 This repeated structural description may support an interpretation requiring a physically distinct and attachable component.

VI. Other Allegations

• Indirect Infringement: The complaint alleges induced infringement for both patents. It asserts that Apple's customers are the direct infringers and that Apple induces their infringement by "advising and directing" users, "advertising and promoting" the infringing use of the iPhones with accessories, and distributing instructions for the "precision locate" feature Compl. ¶47 Compl. ¶55
• Willful Infringement: The complaint does not use the word "willful" but requests treble damages under 35 U.S.C. § 284 Prayer C The factual basis for this request is the allegation that Apple had pre-suit knowledge of the technology from a November 2011 meeting where THL representatives gave Apple a "slide presentation and a live demo of the BIKN in action" under an NDA Compl. ¶24

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

• A core issue will be one of architectural scope: can the term "adjunct device," as described in the '680 patent with consistent reference to a physically separate, port-coupled module, be construed to cover the UWB transceiver and related components that are fully integrated within the housing of the accused iPhones?
• A second central issue will relate to pre-suit knowledge and damages: what evidence will emerge regarding the 2011 meeting between THL and Apple, and will it be sufficient to establish that Apple had knowledge of the patented technology years before launching the accused products, potentially supporting the claim for enhanced damages?