Integral Wireless Tech LLC v. Lucid Group Inc

I. Executive Summary and Procedural Information

• Case Name: Integral Wireless Technologies LLC v. Teltonika IoT Group and Teltonika Networks, Uab
• Parties & Counsel:
  • Plaintiff: Integral Wireless Technologies LLC (Texas)
  • Defendant: Teltonika IoT Group and Teltonika Networks, Uab (Lithuania)
  • Plaintiff's Counsel: Rozier Hardt McDonough, PLLC
• Case Identification: 2:25-cv-00945, E.D. Tex., 04/28/2026
• Venue Allegations: Plaintiff alleges venue is proper because Defendants are not residents of the United States and may be sued in any judicial district pursuant to 28 U.S.C. § 1391(c)(3). The complaint further alleges personal jurisdiction based on Defendants' purposeful direction of commercial activities at the United States and the State of Texas, including the establishment of a physical office in Dallas, Texas.
• Core Dispute: Plaintiff alleges that Defendant's portfolio of networking, IoT, and telematics products infringes eight U.S. patents covering a range of technologies including wireless communication protocols, data processing methods, and power-saving features.
• Technical Context: The patents-in-suit relate to foundational technologies in wireless communications, data compression, and user data analysis, which are integral to the functioning of modern IoT devices, cellular routers, and network infrastructure.
• Key Procedural History: This is a Second Amended Complaint. The complaint alleges that Defendants have had actual knowledge of several of the asserted patents since at least the time of receiving the original complaint in the action, which may be relevant to potential claims of willful infringement.

Case Timeline

Date	Event
2001-10-04	'127 Patent Priority Date
2003-03-25	'878 Patent Priority Date
2004-12-20	'716 Patent Priority Date
2005-07-21	'007 Patent Priority Date
2007-02-21	'214 Patent Priority Date
2007-09-11	'127 Patent Issue Date
2008-07-07	'360 and '748 Patents Priority Date
2008-12-10	'714 Patent Priority Date
2009-01-27	'878 Patent Issue Date
2010-03-09	'007 Patent Issue Date
2010-04-27	'214 Patent Issue Date
2012-04-10	'360 Patent Issue Date
2015-03-10	'714 Patent Issue Date
2015-12-08	'748 Patent Issue Date
2018-07-24	'716 Patent Issue Date
2024-12-01	Defendant opened a physical branch office in Dallas, Texas
2026-04-28	Complaint Filing Date

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

U.S. Patent No. 7,269,127 - Preamble Structures for Single-Input, Single-Output (SISO) and Multi-Input, Multi-Output (MIMO) Communication Systems

The Invention Explained

• Problem Addressed: The patent's background describes existing preamble structures for wireless communications, such as in the IEEE 802.11a standard, as having "considerable redundancy" and being inefficient, particularly when adapted for more complex multi-antenna (MIMO) systems U.S. Patent No. 7,269,127, col. 3:9-12
• The Patented Solution: The invention proposes a more efficient preamble structure for wireless frames, particularly in Orthogonal Frequency Division Multiplexing (OFDM) systems. The solution uses shortened training symbols that still allow for necessary functions like time and frequency synchronization and channel estimation, but with less overhead U.S. Patent No. 7,269,127, abstract This is achieved in part by defining a specific mathematical relationship between the length of a data block (N), the length of a training block (N₁), and the length of its cyclic prefix (G), such as G=N₁/4 U.S. Patent No. 7,269,127, col. 3:30-41
• Technical Importance: By reducing the overhead associated with the preamble, the invention allows for a greater proportion of a wireless transmission to be dedicated to actual data, thereby increasing overall system throughput and efficiency.

Key Claims at a Glance

• The complaint asserts at least independent claim 20 Compl. ¶41
• The essential elements of claim 20 include:
  • A method of forming a frame structure transmitted in a communication system.
  • Providing data blocks and training blocks.
  • Combining them in a parallel format and taking an inverse discrete fourier transform (IDFT) to form IDFT blocks.
  • Inserting cyclic prefixes to form parallel symbols.
  • Converting the parallel symbols to a serial format to form a preamble structure and a data structure.
  • The preamble must comprise at least one training symbol and an "enhanced training symbol."
  • The data structure comprises a plurality of data symbols, each with a cyclic prefix (length G) and a data block (length N).
  • The enhanced training symbol must comprise a cyclic prefix (length G) and a training block (length N₁) where N₁=N/I (I is an integer) and G=N₁/4.

U.S. Patent No. 7,483,878 - Generation and Presentation of Search Results Using Addressing Information

The Invention Explained

• Problem Addressed: The complaint suggests the invention improves methods for generating and presenting search results in a computer network Compl. ¶49, addressing the inefficiency of untargeted content delivery.
• The Patented Solution: The patent describes a method where a user's browsing context is used to automatically generate and present relevant search results. The system receives "addressing information" that identifies a location in a network (e.g., a URL), processes that information to generate a keyword, performs a search on that keyword, and presents the results to the user as they navigate to that location U.S. Patent No. 7,483,878, abstract Compl. ¶52
• Technical Importance: This technology represents a method for contextual search and advertising, moving beyond direct user queries to infer user intent from browsing behavior, a foundational concept in modern online marketing.

Key Claims at a Glance

• The complaint asserts at least independent claim 1 Compl. ¶51
• The essential elements of claim 1 include:
  • A method of providing search results to an end-user over a computer network.
  • Receiving addressing information identifying a location in a computer network.
  • Processing the addressing information to generate a keyword.
  • Performing a search on the keyword to generate a search result.
  • Presenting to an end-user the search result responsive to the keyword, which is based on the addressing information, in response to the end-user navigating to the location using a client computer.

U.S. Patent No. 7,676,007 - System and Method for Interpolation Based Transmit Beamforming for MIMO-OFDM with Partial Feedback

• Technology Synopsis: The patent describes improving multiple-input multiple-output (MIMO) systems by using partial feedback from a receiver to perform interpolation-based transmit beamforming Compl. ¶76 This allows a transmitter to derive beamforming vectors for all subcarriers based on feedback for only a subset of subcarriers, reducing feedback overhead.
• Asserted Claims: At least independent claim 1 is asserted Compl. ¶78
• Accused Features: Teltonika's 802.11ac Wi-Fi compatible devices, such as the TAP200 and various RUT-series routers, are accused of infringement Compl. ¶72

U.S. Patent No. 7,707,214 - Hierarchical Update Scheme for Extremum Location with Indirect Addressing

• Technology Synopsis: The patent describes improving data processing systems by using a hierarchical data structure to enable efficient identification and updating of extrema (e.g., maximum or minimum values) based on indirect addressing Compl. ¶103 This is alleged to be relevant to video compression standards like HEVC/H.265.
• Asserted Claims: At least independent claim 15 is asserted Compl. ¶105
• Accused Features: Teltonika's HEVC (H.265) compatible devices, including the Teltonika DashCam and DualCam, are accused of infringement Compl. ¶99

U.S. Patent No. 8,156,360 - Systems and Methods for Waking Wireless LAN Devices

• Technology Synopsis: The patent describes methods for wirelessly waking computer devices from a reduced power or sleep mode over a wireless local area network Compl. ¶130 A controller monitors for a specific wake-up packet and initiates a transition from a low-power to a high-power mode.
• Asserted Claims: At least independent claim 8 is asserted Compl. ¶132
• Accused Features: Teltonika's Bluetooth Low Energy (BLE) 5.0+ and Bluetooth Basic Rate/Enhanced Data Rate (BT BR-EDR) v4.1+ compatible devices are accused of infringement Compl. ¶126

U.S. Patent No. 8,976,714 - Providing and Acquiring A System Information Message In A Wireless Network

• Technology Synopsis: The patent concerns a user equipment (UE) configured to receive "si-Windowlength" information in a System Information (SI) type 1 message Compl. ¶157 This information is used to calculate when and for how long to listen for subsequent SI messages in a wireless frame, improving the efficiency of acquiring system information.
• Asserted Claims: At least independent claim 1 is asserted Compl. ¶159
• Accused Features: Teltonika's 5G compatible devices, such as the RUTM52 Dual 5G Router, are accused of infringement Compl. ¶153

U.S. Patent No. 9,207,748 - Systems and methods for a wireless device wake-up process including power-save and non-power-save modes

• Technology Synopsis: This patent is similar to the '360 patent and describes systems for waking computing devices from a sleep state using signals sent over a wireless network Compl. ¶183 It involves a controller triggering a wake-up detection mode and transitioning the device from a power-save to a non-power-save mode upon receiving a wake-up packet.
• Asserted Claims: At least independent claim 8 is asserted Compl. ¶185
• Accused Features: Teltonika's Bluetooth Low Energy (BLE) 5.0+ and Bluetooth Basic Rate/Enhanced Data Rate (BT BR-EDR) v4.1+ compatible devices are accused of infringement Compl. ¶179

U.S. Patent No. 10,033,716 - Method and Device for Publishing Cross-Network User Behavioral Data

• Technology Synopsis: The patent relates to improving client computing environments by summarizing a user's cross-network behavioral data (e.g., browsing history) on the client computer and publishing that data to a data structure (e.g., a cookie) Compl. ¶193 This data structure then becomes accessible to a server, which can use the summarized data to deliver customized messages or advertisements.
• Asserted Claims: At least independent claim 1 is asserted Compl. ¶195
• Accused Features: The "Teltonika cookie, personalization, and customization functionality on its website" are accused of infringement Compl. ¶189

III. The Accused Instrumentality

Product Identification

• The complaint names a wide range of products, grouped into categories: the "Teltonika server system," "Teltonika 5G compatible devices," "Teltonika 802.11n compatible devices," "Teltonika 802.11ac compatible devices," "Teltonika HEVC Devices," and "Teltonika Bluetooth Devices" Compl. ¶29 Specific product model numbers cited include routers (e.g., RUTM52, RUTX50), vehicle telematics devices (e.g., Teltonika DashCam), and various sensors and beacons (e.g., EYE BEACON ATEX) Compl. ¶¶29-30

Functionality and Market Context

• The accused products are networking and Internet of Things (IoT) devices that provide wireless connectivity via standards like 5G, Wi-Fi (802.11n/ac), and Bluetooth Compl. ¶29 They also include video telematics products that use HEVC (H.265) video compression Compl. ¶29 The complaint alleges these products are sold and distributed in the United States through online channels and distribution partners, including Texas-based distributors Compl. ¶¶31-33 Compl. ¶23 A screenshot from the complaint shows the search results for "Cellular Router" on a Teltonika website, displaying various accused products Compl. Ex. B, p. 2 The complaint also highlights Defendant's strategic expansion into the U.S. market, evidenced by the opening of a physical office in Dallas, Texas Compl. ¶22

IV. Analysis of Infringement Allegations

The complaint references claim chart exhibits for the asserted patents, but these exhibits are not included in the provided document set. Therefore, the infringement allegations are summarized in prose based on the narrative infringement theories provided in the complaint.

U.S. Patent No. 7,269,127 Infringement Allegations

• Plaintiff alleges that Defendants' 802.11n-compatible devices directly infringe at least claim 20 of the '127 patent Compl. ¶¶40-41 The complaint outlines a method of forming a frame structure, which includes providing data and training blocks, combining them, performing an inverse discrete fourier transform, inserting cyclic prefixes to create symbols, and converting these to a serial format Compl. ¶42 Crucially, the infringement theory alleges the formation of an "enhanced training symbol" with a specific structure and a mathematical relationship between the lengths of its cyclic prefix and training block, which Defendants' products are alleged to perform Compl. ¶42

U.S. Patent No. 7,483,878 Infringement Allegations

• Plaintiff alleges that the search functionality on Defendants' website infringes at least claim 1 of the '878 patent Compl. ¶¶50-51 The infringement theory alleges that when a user navigates to a search URL on the Teltonika website (e.g., https://teltonika-networks.com/search?q=Cellular+Router), the system performs the claimed method Compl. ¶52 A screenshot provided in the complaint shows the search functionality on the Teltonika Networks website, which is accused of receiving addressing information, generating a keyword, performing a search, and presenting results Compl. Ex. B, p. 2 Specifically, the system is alleged to receive the URL as "addressing information," process it to generate a "keyword" (e.g., "Cellular+Router"), perform a search on that keyword, and present the resulting product listings to the user Compl. ¶52

Identified Points of Contention

• Scope Questions: A central question for the '878 patent will be one of claim scope: can the term "addressing information" be construed to cover a website's URL query string? Similarly, the court may need to determine if "processing" the URL to derive a "keyword" simply means parsing the text of the query string, and whether an internal website search constitutes "performing a search on the keyword" as required by the claim.
• Technical Questions: For the '127 patent, a key technical question will concern the specific structure of the preamble in the accused 802.11n devices. The analysis will focus on whether the devices' frame structures, while compliant with the 802.11n standard, also meet the specific mathematical limitations of claim 20, such as the ratio between the cyclic prefix length and the training block length (G=N₁/4). A screenshot provided in the complaint shows a Teltonika DashCam that supports HEVC (H.265) video compression, a technology accused of infringing the '214 patent's method for finding extrema in data sets Compl. Ex. D, p. 2 A key question will be whether the algorithms used in H.265 compression perform the specific steps of partitioning data and generating a "coarse representation of extrema" as claimed.

V. Key Claim Terms for Construction

For U.S. Patent No. 7,269,127:

• The Term: "enhanced training symbol" (from claim 20)
• Context and Importance: This term is central to the claimed invention's novelty. The infringement analysis will likely depend on whether the training symbols used in the accused 802.11n devices can be characterized as "enhanced" in the specific manner required by the patent, including the precise structural and mathematical relationships to data symbols (N₁=N/I, G=N₁/4). Practitioners may focus on this term because it distinguishes the invention from prior art preamble structures.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The specification describes the invention as an "efficient preamble structure" generally U.S. Patent No. 7,269,127, col. 3:13-14, which could support an interpretation covering any preamble that achieves higher efficiency through shortened training symbols.
  • Evidence for a Narrower Interpretation: The claim itself, and the detailed description, impose strict mathematical limitations on the symbol's structure, stating it comprises a cyclic prefix and a training block where the block has N₁ samples and the prefix has G samples, such that G=N₁/4 U.S. Patent No. 7,269,127, claim 20 This language may support an interpretation that requires exact adherence to this formula.

For U.S. Patent No. 7,483,878:

• The Term: "addressing information" (from claim 1)
• Context and Importance: The definition of this term is critical, as it is the trigger for the entire claimed method. Plaintiff's case may depend on this term being construed broadly enough to encompass a URL containing a search query, as alleged in the complaint. A defendant would likely argue for a narrower construction that does not cover this functionality.
• Intrinsic Evidence for Interpretation: The complaint does not provide the patent specification for analysis.
  • Evidence for a Broader Interpretation: The complaint alleges the accused functionality is navigating to a URL like "https://teltonika-networks.com/search?q=Cellular+Router" Compl. p. 15 The patent's abstract describes the term as "identifying a location in a computer network" U.S. Patent No. 7,483,878, abstract, which could be argued to broadly cover any URL.
  • Evidence for a Narrower Interpretation: The complaint does not provide sufficient detail for analysis of intrinsic evidence supporting a narrower interpretation.

VI. Other Allegations

• Indirect Infringement: Plaintiff alleges both induced and contributory infringement for most of the asserted patents. For inducement, the complaint alleges Defendants provide instructions, advertising, and technical support that guide customers to use the accused products in an infringing manner Compl. ¶58 Compl. ¶85 A screenshot from the complaint shows a product page for the Teltonika EYE BEACON ATEX, a device accused of infringing the '360 and '748 patents related to wireless wake-up processes Compl. Ex. G-2, p. 2 The availability of such product information and manuals is part of the basis for the inducement allegations. For contributory infringement, Plaintiff alleges the accused products have "special features" that are not "staple articles of commerce suitable for substantial non-infringing use" Compl. ¶64 Compl. ¶65
• Willful Infringement: The complaint alleges willful infringement for several patents, asserting that Defendants had "actual knowledge" of the patents "since at least the time of receiving the original complaint in this action" Compl. ¶54 Compl. ¶81 It further supports the willfulness claim by alleging Defendants have a "policy or practice of not reviewing the patents of others, including instructing their employees to not review the patents of others, and thus have been willfully blind" of Plaintiff's patent rights Compl. ¶53 Compl. ¶80

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

• A primary issue will be one of technical mapping and claim scope: For the wireless communications patents ('127, '007, '714), does the operation of Defendants' standard-compliant devices (e.g., 802.11n, 5G) meet the specific, often mathematically-defined, limitations of the patent claims? For the data processing patents ('878, '214, '716), can claim terms like "addressing information" and "coarse representation of extrema" be construed broadly enough to read on the accused website search and video compression functionalities?
• A second central question will concern jurisdiction and extraterritoriality. The complaint dedicates significant attention to establishing personal jurisdiction over the Lithuanian defendants through their U.S. activities, including a Texas-based office. The case may feature an early and substantial dispute over whether Defendants' U.S. contacts are sufficient to subject them to suit in the Eastern District of Texas for alleged infringement originating from products designed and manufactured abroad.
• A third question will revolve around willfulness and damages. Plaintiff's allegations of a "policy or practice of not reviewing the patents of others" suggests an attempt to establish willful blindness pre-suit. The viability of this claim, in addition to willfulness based on post-suit knowledge, will be a critical factor in determining the potential for enhanced damages.