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., 05/18/2026
• Venue Allegations: Plaintiff alleges venue is proper in the Western District of Texas because Defendant Apple maintains multiple "regular and established physical places of business" in the district, including its second-largest U.S. campus, retail stores, and employs thousands of people, thereby conducting substantial business in the forum. Plaintiff also notes that it is headquartered in the district.
• Core Dispute: Plaintiff alleges that Defendant's AirTag Sharing feature, available on iPhones running iOS 17 and later, infringes a patent related to wireless device paging networks.
• Technical Context: The technology at issue falls within the personal item locator market, where a primary device like a smartphone is used to find secondary tagged items via short-range wireless signals.
• Key Procedural History: The complaint alleges that Plaintiff THL met with Apple in November 2011 under a non-disclosure agreement to discuss a potential retail distribution deal for THL's "BIKN" product, a physical embodiment of its patented technology. The complaint states Apple ultimately declined to proceed. Public records associated with the patent-in-suit indicate that on August 7, 2024, a disclaimer was filed disclaiming claims 10-12 and 15-20 of the patent. The claims asserted in this litigation, claims 13 and 14, were not disclaimed.

Case Timeline

Date	Event
2010-02-26	'680 Patent Priority Date
2011-11-03	Plaintiff THL and Defendant Apple meet to discuss THL's BIKN product
2022-03-01	'680 Patent Issue Date
2023-09-18	Apple announces iOS 17 with AirTag Sharing feature
2024-08-07	Disclaimer filed for claims 10-12 and 15-20 of the '680 Patent
2026-05-18	Complaint Filing Date

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

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

The patent is referred to as the "'680 Patent" and was issued March 1, 2022.

The Invention Explained

• Problem Addressed: The patent background describes the inconvenience of misplacing personal items and the desirability of new functions for wireless devices beyond standard communication, particularly for interacting with other wireless devices '680 Patent, col. 2:37-45
• The Patented Solution: The invention proposes a system where a primary "handheld wireless communication device," such as a smartphone, is paired with an "adjunct device" '680 Patent, col. 5:9-13 This adjunct device contains a short-range wireless transceiver that can communicate with one or more "remote wireless devices" (e.g., tags) attached to personal items like keys '680 Patent, Fig. 1 '680 Patent, col. 5:14-22 A user can initiate a "page" from the handheld device to cause the remote device to emit an alert, or can use signal strength and directionality to locate it '680 Patent, col. 9:37-col. 10:2
• Technical Importance: The technology provided a framework for using a central computing device, like a smartphone, to create and manage a personal network of locatable items via a hardware accessory.

Key Claims at a Glance

• The complaint asserts dependent claims 13 and 14 of the '680 Patent Compl. ¶34 These claims depend from independent claim 10.
• The essential elements of independent claim 10 include:
  • A mobile communication device comprising a plurality of wireless transceivers, a touchscreen, memory, and a processor.
  • The processor executes instructions to facilitate, via the touchscreen, the selection of a remote device from a plurality of remote devices.
  • The processor responds to a touchscreen interaction by transmitting a "first paging signal" to the selected remote device, causing it to generate an "audio alert."
  • The processor presents a display on the touchscreen based on a signal received from the remote device, where the display "visually assists a user to determine a location" of the remote device.
• The complaint does not explicitly reserve the right to assert other claims.

III. The Accused Instrumentality

Product Identification

The accused instrumentalities are "Apple's iPhone 15 and later models running iOS 17 and later supporting AirTag Sharing" Compl. ¶34 This system includes the iPhone, the iOS 17 operating system, and Apple AirTags (First and Second Generation) Compl. ¶5

Functionality and Market Context

The complaint focuses on the "AirTag Sharing" feature introduced with iOS 17 Compl. ¶32 This feature allows an AirTag owner to share the tag with up to five other people Compl. ¶33 Once shared, all members of the group can view the AirTag's location, play a sound on it, and use Precision Finding to locate it when nearby Compl. ¶33 This functionality creates a multi-user system for tracking a single tagged item using multiple iPhones. The complaint includes an image of Plaintiff's own "BIKN" product packaging, which it alleges embodied the patented technology and was presented to Apple years before the accused products were released Compl. ¶18 Another image from a 2012 video shows the BIKN device and its corresponding iPhone application in use Compl. p. 6

IV. Analysis of Infringement Allegations

The complaint states that "Exhibit B is a representative claim chart" demonstrating infringement, but this exhibit was not attached to the provided filing Compl. ¶35 The following table summarizes the infringement allegations for independent claim 10, constructed from the narrative assertions in the complaint.

'680 Patent Infringement Allegations

Claim Element (from Independent Claim 10)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
a mobile communication device comprising: a plurality of wireless transceivers; a touchscreen; a memory that stores operational instructions; and a processor...	The accused iPhone 15 is a mobile communication device containing the recited hardware components.	¶34	col. 4:55-63
...facilitate, via a second interaction with the touchscreen, selection of the at least one remote device from a plurality of remote devices;	The Find My application on an iPhone allows a user to interact with the touchscreen to select a specific AirTag (a remote device) from a list of items to locate or share.	¶33	col. 17:1-col. 18:18
...respond to a third interaction with the touchscreen by transmitting... a first paging signal to the at least one remote device, wherein the first paging signal causes the at least one remote device to generate the audio alert;	A user can interact with the iPhone's touchscreen in the Find My app to "play a sound," which causes the iPhone to transmit a signal (paging signal) that triggers an audible alert from the selected AirTag.	¶33	col. 39:5-9
...present a display on the touchscreen, based on a signal received... from the at least one remote device, wherein the display visually assists a user to determine a location...	The iPhone receives signals related to the AirTag's location and presents a map or "Precision Finding" interface on the touchscreen to visually guide the user to the item.	¶33	col. 9:60-col. 10:2

• Identified Points of Contention:
  • Scope Questions: A primary dispute may arise over the term "paging network" from asserted dependent claim 13, which requires a "plurality of paging networks." The infringement theory rests on the "AirTag Sharing" feature Compl. ¶¶32-33 This raises the question of whether adding multiple users to a single AirTag constitutes the formation of a "plurality" of distinct networks as arguably required by the claim and illustrated in the patent's specification '680 Patent, Fig. 17
  • Technical Questions: The '680 Patent specification extensively describes an "adjunct device" that physically couples to a handheld device to provide short-range communication capabilities '680 Patent, Figs. 2-3 '680 Patent, col. 5:9-13 The accused iPhone 15 has this functionality integrated. This suggests a possible dispute over whether the claims should be interpreted as being limited to a two-component system (phone plus a separate adjunct), or if they read on a single, integrated device.

V. Key Claim Terms for Construction

• The Term: "mobile communication device"
• Context and Importance: This term is foundational to independent claim 10. The specification frequently describes the invention as a two-part system: a "handheld wireless communication device" and a separate, physically attached "adjunct device" that provides the short-range radio functionality '680 Patent, col. 6:5-13 Because the accused iPhone 15 integrates all necessary radios, the construction of this term will be critical. Practitioners may focus on this term because its interpretation could determine whether a single, integrated device falls within the scope of claims seemingly directed at a multi-component system.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The claim language itself simply recites "mobile communication device" without requiring a separate adjunct. Furthermore, the specification describes an alternative embodiment where the functionality is integrated into a single housing, stating it includes the structure of both the handheld device and the adjunct "within a single housing, and without the external connections" '680 Patent, col. 30:5-14 '680 Patent, Fig. 33
  • Evidence for a Narrower Interpretation: The detailed description of the preferred embodiments consistently depicts and describes a separate adjunct device as the component that provides the short-range transceivers and responds to paging signals from remote devices '680 Patent, Figs. 1-5 '680 Patent, col. 5:9-44 An argument could be made that the "invention" is the adjunct device itself and its combination with a standard phone.

VI. Other Allegations

• Indirect Infringement: The complaint alleges induced infringement, stating that Apple took active steps with specific intent to cause its customers to infringe Compl. ¶37 The alleged steps include advertising, promoting the use of the accused products, and distributing instructions, such as the press release announcing the AirTag Sharing feature, that guide users to perform the infringing acts Compl. ¶33 Compl. ¶37
• Willful Infringement: While the complaint does not use the word "willful," it pleads facts that may support such a claim by asserting pre-suit knowledge. It alleges that THL presented its BIKN product, which it claims embodied the patented technology, to Apple representatives in November 2011 under an NDA Compl. ¶¶22-24 The prayer for relief seeks enhanced damages up to three times the assessed amount, a remedy associated with findings of willful infringement Compl., prayer B

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

• A core issue will be one of claim scope versus embodiment: can the term "mobile communication device" in the claims be read to cover the fully integrated iPhone 15, or is the claim scope limited by the specification's extensive disclosure of a two-part system comprising a phone and a separate "adjunct device"? The court's interpretation will likely hinge on the weight given to the integrated embodiment disclosed in Figure 33 of the patent.
• A second key question will be one of network architecture: does Apple's "AirTag Sharing" feature, which allows multiple users to find a single tag, meet the "plurality of paging networks" limitation of asserted claim 13? The resolution will depend on how the court construes the term "paging network" in the context of the patent's description and figures.
• A dispositive factual question will concern pre-suit knowledge: did the 2011 meetings between THL and Apple provide Apple with knowledge of the patented technology sufficient to support a finding of willful infringement? The outcome will depend on the evidence presented regarding what was disclosed during those meetings and its relationship to the technology claimed in the '680 Patent.