DCT

7:26-cv-00226

Omni MedSci Inc v. Apple Inc

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I. Executive Summary and Procedural Information

  • Parties & Counsel:
  • Case Identification: 7:26-cv-00226, W.D. Tex., 06/08/2026
  • Venue Allegations: Venue in the Western District of Texas is asserted based on Apple having regular and established places of business in the District, deriving substantial revenue from sales of accused products in the District, and employing personnel in the District.
  • Core Dispute: Plaintiff alleges that Defendant's smartwatches, earbuds, smartphones, and tablets that perform optical measurements of physiological parameters infringe a portfolio of seven patents related to non-invasive optical sensing technology.
  • Technical Context: The technology at issue involves using optical systems, particularly with short-wave infrared (SWIR) light, in wearable devices to non-invasively measure physiological parameters such as pulse rate, blood oxygen, and other blood constituents.
  • Key Procedural History: The complaint alleges a prolonged history between the parties, including a series of meetings and email exchanges between Plaintiff's principal, Dr. Islam, and Apple personnel from June 2014 to July 2016 concerning the then-patent-pending technology. Plaintiff also notes it filed prior patent infringement lawsuits against Omni MedSci Inc v. Apple Inc in 2018, 2019, and 2020 involving parent patents to the currently asserted portfolio. This history is cited to support allegations of pre-suit knowledge and willful infringement.

Case Timeline

Date Event
2012-12-31 Earliest Priority Date for all Asserted Patents
2014-06-11 Plaintiff's principal allegedly meets with Apple employees to discuss technology
2015-02-05 Plaintiff's principal allegedly holds follow-up meeting with Apple employees
2016-07-18 Plaintiff's principal allegedly holds further meeting with Apple employees
2017-12-21 Plaintiff's principal allegedly emails Apple regarding status of patent applications
2018-04-06 Plaintiff files first prior lawsuit against Apple
2018-10-15 Plaintiff files second prior lawsuit against Apple
2020-01-24 Plaintiff files third prior lawsuit against Apple
2023-01-31 U.S. Patent No. 11,564,577 Issues
2023-06-20 U.S. Patent No. 11,678,805 Issues
2024-02-13 U.S. Patent No. 11,896,346 Issues
2025-01-14 U.S. Patent No. 12,193,790 Issues
2025-03-18 U.S. Patent No. 12,251,194 Issues
2025-04-08 U.S. Patent No. 12,268,475 Issues
2025-12-02 U.S. Patent No. 12,484,787 Issues
2026-06-08 Complaint Filing Date

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

U.S. Patent No. 12,268,475 - Wearable Device for Differential Measurement on Pulse Rate and Blood Flow

  • Patent Identification: U.S. Patent No. 12,268,475 ("Wearable Device for Differential Measurement on Pulse Rate and Blood Flow"), issued April 8, 2025.

The Invention Explained

  • Problem Addressed: The patent background describes the need for non-invasive methods to monitor blood constituents, such as glucose, noting that conventional methods can be painful and inconvenient Compl. ¶25 '475 Patent, col. 3:1-12 It further identifies the challenge of achieving adequate signal-to-noise ratio in optical sensing due to interference from other constituents and skin properties '475 Patent, col. 3:20-33
  • The Patented Solution: The invention proposes a wearable apparatus that uses a light source (e.g., LEDs) and spatially separated detectors to measure physiological parameters '475 Patent, abstract To improve measurement quality, the system is configured to increase the signal-to-noise ratio by techniques such as comparing a signal generated when the light source is on with a signal generated when it is off, which may help cancel out ambient light interference '475 Patent, col. 8:14-19 '475 Patent, abstract
  • Technical Importance: This approach sought to improve the accuracy and reliability of non-invasive optical physiological monitoring, a key enabling step for the development of consumer-grade health and wellness wearables '475 Patent, col. 8:14-19

Key Claims at a Glance

  • The complaint asserts dependent claims 2-4, 9, and 10, which rely on independent claim 1 Compl. ¶122
  • Independent Claim 1 of the '475 Patent recites:
    • An apparatus adapted to be worn by a user, comprising one or more biosensors, a light source with LEDs, one or more lenses, a detection system, and a processor.
    • The light source generates an optical light with one or more wavelengths.
    • The lenses deliver the light to the user's tissue.
    • The detection system receives light reflected from the tissue and generates an output signal.
    • The detection system is synchronized with the light source and comprises a "plurality of detectors that are spatially separated from each other."
    • An analog-to-digital converter is coupled to at least one detector.
    • The processor uses the output signal, which is indicative of pulse rate and blood flow.
  • The complaint reserves the right to assert additional claims Compl. ¶123

U.S. Patent No. 12,484,787 - Measurements Using Camera Imaging Tissue Comprising Skin or the Hand

  • Patent Identification: U.S. Patent No. 12,484,787 ("Measurements Using Camera Imaging Tissue Comprising Skin or the Hand"), issued December 2, 2025.

The Invention Explained

  • Problem Addressed: The patent addresses the difficulty of obtaining accurate non-invasive measurements of blood constituents due to interference from other substances in the blood and tissue, which can mask the target signal '787 Patent, col. 3:20-33
  • The Patented Solution: The patent describes a measurement device with a light source and multiple detectors housed together '787 Patent, abstract Its processor is configured to generate "reflected light signals" from the device's light source and, crucially, a separate "ambient light signal" when the device's light source is off. By analyzing both, the system can enhance the signal-to-noise ratio to better isolate the physiological parameter of interest '787 Patent, abstract '787 Patent, col. 10:1-12
  • Technical Importance: The explicit generation and use of a separate ambient light signal provided a specific method for improving the accuracy of optical sensors operating in environments with variable background light '787 Patent, col. 11:5-12

Key Claims at a Glance

  • The complaint asserts independent claim 1 and dependent claims 2-5 Compl. ¶133
  • Independent Claim 1 of the '787 Patent recites:
    • A physiological measurement device with a housing, a light source, a plurality of detectors, and a processor.
    • The processor generates "reflected light signals" from light emitted by the source and reflected from the user's tissue.
    • The processor is "further configured to generate an ambient light signal associated with ambient light received by at least one of the plurality of detectors while the light source is not emitting light."
  • The complaint reserves the right to assert additional claims Compl. ¶134

U.S. Patent No. 12,193,790 - Wearable Devices Comprising Semiconductor Diode Light Sources With Improved Signal-to-Noise Ratio

  • Patent Identification: U.S. Patent No. 12,193,790 ("Wearable Devices Comprising Semiconductor Diode Light Sources With Improved Signal-to-Noise Ratio"), issued January 14, 2025 Compl. ¶50
  • Technology Synopsis: This patent describes a wearable optical system that measures physiological parameters, including those that change in response to hand or finger movement. It claims to improve signal-to-noise ratio by synchronizing the detection system with the light source and comparing signals captured when the light is on versus off Compl. ¶¶57-58
  • Asserted Claims: Independent claim 1 and dependent claims 2-6 Compl. ¶144
  • Accused Features: The complaint targets Apple Watch features including "tap, finger movement activation, and blood oxygen measurement features" Compl. ¶144

U.S. Patent No. 11,564,577 - Wearable Device Coupled to Time-of-Flight Imaging System

  • Patent Identification: U.S. Patent No. 11,564,577 ("Wearable Device Coupled to Time-of-Flight Imaging System"), issued January 31, 2023 Compl. ¶61
  • Technology Synopsis: This patent discloses an optical system that combines a wearable physiological sensor with a time-of-flight (ToF) imaging system. The system uses a pulsed laser diode, often with Bragg reflectors, to perform ToF measurements Compl. ¶67
  • Asserted Claims: Independent claim 7 and dependent claims 8-13 Compl. ¶155
  • Accused Features: The complaint targets Apple Watch, iPhone/iPad, and AirPods products, specifically alleging infringement by "blood oxygen measurement features and Face ID (dToF proximity) features, and... heart rate sensor features" Compl. ¶155

U.S. Patent No. 11,896,346 - Short-Wave Infrared Sensor for Identifying Based on Water Content

  • Patent Identification: U.S. Patent No. 11,896,346 ("Short-Wave Infrared Sensor for Identifying Based on Water Content"), issued February 13, 2024 Compl. ¶71
  • Technology Synopsis: The patent describes an optical system using a short-wave infrared (SWIR) light source and detectors to identify an object based on its water absorption characteristics. It operates by comparing output signals related to reflected light at different wavelengths, with at least one wavelength having lower water absorption and another having higher water absorption Compl. ¶¶78-79
  • Asserted Claims: Independent claims 1, 6, and dependent claims 2-5, 7-11 Compl. ¶166
  • Accused Features: The complaint targets Apple AirPods products that include "heart rate sensors and skin sensors" Compl. ¶166

U.S. Patent No. 11,678,805 - Active Remote Sensing System Using Time-of-Flight Sensor Combined with Cameras and Wearable Devices

  • Patent Identification: U.S. Patent No. 11,678,805 ("Active Remote Sensing System Using Time-of-Flight Sensor Combined with Cameras and Wearable Devices"), issued June 20, 2023 Compl. ¶82
  • Technology Synopsis: This patent relates to an active remote sensing system that identifies an object based on water absorption. It uses two semiconductor sources at different near-infrared wavelengths and compares the reflected signals to generate an output value, which is then used for identification Compl. ¶¶88-89
  • Asserted Claims: Independent claim 14 and dependent claims 15-20 Compl. ¶177
  • Accused Features: The complaint targets Apple AirPods products that include "skin sensors" Compl. ¶177

U.S. Patent No. 12,251,194 - Time-of-Flight Sensors Co-Registered with Camera Systems

  • Patent Identification: U.S. Patent No. 12,251,194 ("Time-of-Flight Sensors Co-Registered with Camera Systems"), issued March 18, 2025 Compl. ¶92
  • Technology Synopsis: The patent covers a remote sensing system that combines time-of-flight depth information with camera imaging. It uses an array of laser diodes and Bragg reflectors to generate pulsed light, and combines the resulting time-of-flight data with images from a camera system to create a "combined data" Compl. ¶¶99-100
  • Asserted Claims: Independent claim 1 and dependent claims 2-7, 8, and 9 Compl. ¶188
  • Accused Features: The complaint targets Apple iPhone products, specifically their "periscope cameras, multiple cameras, and LiDAR features" Compl. ¶188

III. The Accused Instrumentality

Product Identification

  • The accused products are a wide range of Apple devices, including:
    • Apple Watch Products (Apple Watch Series 6 and later, Apple Watch Ultra and Ultra 2) Compl. ¶115
    • Apple AirPods Products (AirPods 3, AirPods Pro 2, and AirPods Pro 3) Compl. ¶118
    • Apple iPhone Products (iPhone 12 Pro and later, iPhone 15 Pro and Pro Max) Compl. ¶119
    • Apple iPad Products (any model of iPad Pro released in 2020 or later) Compl. ¶120

Functionality and Market Context

  • The complaint alleges these devices incorporate optical sensors and processors to perform non-invasive physiological measurements, such as heart rate and blood oxygen levels Compl. ¶115 Compl. ¶118 Specific functionalities named include finger movement detection, Face ID (which is described as a "dToF proximity" feature), and LiDAR scanning Compl. ¶144 Compl. ¶155 Compl. ¶188 The complaint also highlights the ecosystem aspect, where these devices are designed to connect with iPhones, iPads, and cloud platforms like iCloud to form an "integrated measurement system" Compl. ¶117 Compl. ¶122 Apple is alleged to actively market and sell these products globally (Compl. ¶115; Compl. ¶116; Compl. ¶117; Compl. ¶118; Compl. ¶119; Compl. ¶120).

IV. Analysis of Infringement Allegations

The complaint references external claim chart exhibits that were not provided with the complaint document Compl. ¶123 Compl. ¶134 Therefore, a narrative summary of the infringement allegations is provided below.

No probative visual evidence provided in complaint.

  • '475 Patent Narrative Summary: Plaintiff alleges that Apple Watch products (Series 9 and later, Ultra 2 and later) directly and indirectly infringe at least claims 2-4, 9, and 10 of the '475 Patent Compl. ¶122 The theory appears to be that these watches are wearable biosensors that use optical components (light sources, lenses, detectors) to measure physiological parameters like pulse rate and blood flow, thereby practicing the claimed invention Compl. ¶35 Compl. ¶122 The allegations of infringement by Apple employees and end-users are also included Compl. ¶122 Compl. ¶125

  • '787 Patent Narrative Summary: Plaintiff alleges that Apple Watch products (Series 6 and later, Ultra models) directly and indirectly infringe at least claims 1-5 of the '787 Patent Compl. ¶133 The infringement theory focuses on the use of a light source and detectors to perform physiological measurements, such as blood oxygen levels Compl. ¶133 The allegations point to the use of signal processing to increase the signal-to-noise ratio, which Plaintiff maps to the patent's claims for generating and analyzing both reflected light signals and ambient light signals Compl. ¶46 Compl. ¶47 Compl. ¶133

V. Key Claim Terms for Construction

  • Term: "spatially separated" (from '475 Patent, claim 1)

    • Context and Importance: This term is central to the physical architecture of the sensor system in the '475 Patent. The definition will determine the required physical layout of the detectors. A key question will be whether any separation suffices, or if the separation must be sufficient to enable a particular type of differential measurement.
    • Intrinsic Evidence for a Broader Interpretation: The claim language itself does not impose any specific distance or purpose for the separation, merely that the "plurality of detectors... are spatially separated from each other" '475 Patent, col. 85:60-62 This may support an argument that any non-zero distance between detectors meets the limitation.
    • Intrinsic Evidence for a Narrower Interpretation: The specification describes embodiments where differential measurements are taken between two distinct regions, such as over a vein and adjacent to it, to isolate a signal '475 Patent, col. 23:1-13 This could support an argument that "spatially separated" implies a separation that is functionally significant and sufficient to enable such a differential measurement between distinct tissue types, not merely any physical spacing.

  • Term: "generate an ambient light signal" (from '787 Patent, claim 1)

    • Context and Importance: Claim 1 requires the processor to generate a specific "ambient light signal" when the primary light source is off. The interpretation of this phrase will be critical to determining if Apple's noise-cancellation or signal-correction methods infringe. The dispute may turn on whether Apple's process creates a distinct "signal" or uses a more integrated filtering technique.
    • Intrinsic Evidence for a Broader Interpretation: The patent's summary states the goal is to increase the signal-to-noise ratio by performing analysis that includes ambient light '787 Patent, col. 10:1-12 This could be argued to encompass any software routine that measures background light and uses it to adjust the final output, regardless of the specific implementation.
    • Intrinsic Evidence for a Narrower Interpretation: The claim language requires the processor to "generate an ambient light signal" '787 Patent, col. 87:49-53 This may be construed to require the creation of a discrete set of data representing only ambient light, which is then used in a subsequent processing step. A defendant might argue that a general-purpose noise filter that does not create such an intermediate, standalone "signal" would not meet this limitation.

VI. Other Allegations

  • Indirect Infringement: The complaint alleges both induced and contributory infringement for all asserted patents. The inducement allegations are based on Apple providing the accused products along with software (e.g., Apple Health app), cloud services (iCloud), instructions, marketing, and technical support that allegedly direct and encourage end-users to operate the devices in an infringing manner Compl. ¶¶127-128 Compl. ¶¶138-139 Contributory infringement is alleged on the basis that Apple's devices are material components especially made for use in the patented systems and are not staple articles of commerce suitable for substantial non-infringing use Compl. ¶129 Compl. ¶140
  • Willful Infringement: The complaint makes detailed allegations to support willfulness. It claims Apple had pre-suit knowledge of the technology and pending patents through a series of meetings and communications with the inventor, Dr. Islam, between 2014 and 2017 Compl. ¶¶103-110 It further alleges knowledge based on a history of prior lawsuits filed by Plaintiff against Apple on related parent patents in 2018, 2019, and 2020 Compl. ¶¶111-114 The complaint alleges that despite this knowledge, Apple continued to infringe, making the infringement willful, deliberate, and egregious Compl. ¶131 Compl. ¶142

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

  1. Impact of Prior Art and Prosecution History: Given that all seven patents derive from a 2012 priority date and relate to optical sensing, a central issue will be their validity over prior art. The extensive family history and prior litigations suggest that the scope and patentability of these specific claims, in light of what was known and what was previously litigated, will be a focal point of the defense.

  2. The Scope of "Knowledge" for Willfulness: The case presents a significant question regarding willfulness based on extensive pre-suit interactions. A key factual and legal question will be whether the alleged discussions about "then-pending patent applications" between 2014-2017 and the prior lawsuits on parent patents gave Apple knowledge of the specific inventions claimed in these seven recently-issued patents, sufficient to establish the "wanton and malicious" conduct required for enhanced damages.

  3. Technical Equivalence vs. Functional Mismatch: The core infringement dispute will likely center on detailed technical comparisons. A key evidentiary question will be one of functional equivalence: does the signal processing in Apple's devices, which likely uses sophisticated algorithms to filter noise, perform the same function in substantially the same way to achieve the same result as the specific methods recited in the claims, such as "generat[ing] an ambient light signal" ('787 Patent) or using "spatially separated" detectors for differential measurement ('475 Patent)?

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