Interstate Patents LLC v. Amerigas Propane LP

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: Interstate Patents, LLC (Texas)
  • Defendant: AmeriGas Propane, L.P. and AmeriGas Propane, Inc. (Delaware)
  • Plaintiff's Counsel: Antonelli, Harrington & Thompson LLP
• Case Name: Interstate Patents, LLC v. AmeriGas Propane, L.P.
• Case Identification: 9:26-cv-00276, E.D. Tex., 04/16/2026
• Venue Allegations: Venue is alleged to be proper in the Eastern District of Texas because Defendant AmeriGas has regular and established places of business in the district, including in Wylie, Texas, and has allegedly committed acts of patent infringement there.
• Core Dispute: Plaintiff alleges that Defendant's use of fleet management and driver safety systems, provided by Lytx, Inc., infringes six U.S. patents covering a range of technologies from vehicle risk management and image processing to wireless communication protocols.
• Technical Context: The technology at issue involves in-vehicle telematics, including dashcam video recording, driver behavior analysis, and wireless data transmission, which are critical for modern fleet management, logistics, and safety programs.
• Key Procedural History: The complaint does not reference any prior litigation, inter partes review proceedings, or licensing history related to the asserted patents.

Case Timeline

Date	Event
2004-02-12	Priority Date for U.S. Patent No. 7,460,737
2004-03-26	Priority Date for U.S. Patent No. 7,388,848
2005-11-15	Priority Date for U.S. Patent No. 7,639,943
2005-12-02	Priority Date for U.S. Patent No. 8,098,277
2006-04-19	Priority Date for U.S. Reissued Patent No. RE44,797
2008-06-17	U.S. Patent No. 7,388,848 Issues
2008-12-02	U.S. Patent No. 7,460,737 Issues
2009-12-29	U.S. Patent No. 7,639,943 Issues
2011-06-29	Priority Date for U.S. Patent No. 8,686,844
2012-01-17	U.S. Patent No. 8,098,277 Issues
2014-03-11	U.S. Reissued Patent No. RE44,797 Issues
2014-04-01	U.S. Patent No. 8,686,844 Issues
2026-04-16	Complaint Filed

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

U.S. Patent No. 8,098,277 - "Systems and Methods for Communication Between a Reactive Video System and a Mobile Communication Device"

• Patent Identification: U.S. Patent No. 8,098,277, "Systems and Methods for Communication Between a Reactive Video System and a Mobile Communication Device," issued January 17, 2012 Compl. ¶¶1 Compl. ¶21

The Invention Explained

• Problem Addressed: The patent describes a need for reactive video systems (e.g., public interactive displays) to move beyond generic interactions and provide for easy and private communication with individual users, including personalizing the content displayed '277 Patent, col. 1:44-55
• The Patented Solution: The invention proposes a system where a reactive video engine generates an image (such as a barcode or text string) that can be detected by a user's mobile device '277 Patent, col. 4:11-15 The user can then transmit an "individualized communication" (e.g., an SMS message containing a user ID) back to the system, which allows the system to identify the user and customize the displayed content accordingly '277 Patent, col. 4:35-49 '277 Patent, col. 6:47-54
• Technical Importance: This technology enabled a method for public interactive displays to engage in personalized, two-way communication with users via their mobile devices, creating opportunities for targeted advertising, gaming, and information services '277 Patent, col. 1:20-29

Key Claims at a Glance

• The complaint asserts independent claim 14 Compl. ¶24 Compl. ¶77
• The essential elements of claim 14, a hardware computer readable storage medium, require a program that causes a computing system to perform operations comprising:
  • capturing video data including a space occupied by a user of a mobile communication device;
  • determining an identity of the user based on the video data or information transmitted by the mobile communication device;
  • identifying individualized content associated with the determined identity; and
  • presenting an interactive image that is customized at least partly based on the individualized content on a display '277 Patent, cl. 14

U.S. Reissued Patent No. RE44,797 - "Apparatus, Method and Computer Program Product Providing User Equipment Operation by Considering Scheduling Information With Regard to the Use of Relative Grants"

• Patent Identification: U.S. Reissued Patent No. RE44,797, "Apparatus, Method and Computer Program Product Providing User Equipment Operation by Considering Scheduling Information With Regard to the Use of Relative Grants," issued March 11, 2014 Compl. ¶¶1 Compl. ¶30

The Invention Explained

• Problem Addressed: In advanced wireless protocols like High-Speed Uplink Packet Access (HSUPA), a procedural ambiguity exists regarding how user equipment (UE) should interpret certain network commands ("serving relative grants") when the UE has only transmitted scheduling information (SI) without any actual data in the prior time interval '797 Patent, col. 3:39-47
• The Patented Solution: The patent specifies a clear rule for the UE's operation. It dictates that if the UE transmitted only "scheduling information event alone" in the previous transmission interval, it should not use the serving relative grant. In an alternative embodiment, if SI was sent with non-scheduled data, the grant is used. This resolves the ambiguity and ensures more predictable and efficient management of uplink power resources '797 Patent, abstract '797 Patent, col. 4:50-67
• Technical Importance: This invention provides a precise and efficient rule for managing data rate grants at the MAC-protocol level in mobile communication systems, improving spectral efficiency and network stability '797 Patent, col. 1:5-13

Key Claims at a Glance

• The complaint asserts independent claim 53 Compl. ¶33 Compl. ¶77
• The essential elements of claim 53, a method, comprise:
  • identifying, by a processing device in user equipment, contents of a message transmitted in a first time interval by the user equipment to a base station; and
  • disregarding, by the processing device, a serving relative grant for a transmission during a second time interval based on the contents of the message '797 Patent, cl. 53

Multi-Patent Capsule: U.S. Patent No. 8,686,844 - "Methods, Devices, and Mediums Associated with Risk Management of Vehicle Operation"

• Patent Identification: U.S. Patent No. 8,686,844, "Methods, Devices, and Mediums Associated with Risk Management of Vehicle Operation," issued April 1, 2014 Compl. ¶¶1 Compl. ¶39
• Technology Synopsis: The patent discloses a system for managing vehicle operation risk by receiving input on a vehicle's operating condition, comparing it to environmental parameters (e.g., speed limits), and determining a safety rating '844 Patent, abstract This rating is then assigned to an operator's account, which could be used for insurance or fleet management '844 Patent, col. 1:6-14 '844 Patent, col. 5:8-15
• Asserted Claims: Independent claim 1 Compl. ¶42 Compl. ¶77
• Accused Features: The complaint alleges that AmeriGas's use of Lytx products, which determine a "safety rating of the vehicle operation," infringes this patent (Compl. ¶41; Compl. ¶42; Compl. ¶43; Compl. ¶44).

Multi-Patent Capsule: U.S. Patent No. 7,639,943 - "Computer-Implemented System and Method for Automated Image Uploading and Sharing From Camera-Enabled Mobile Devices"

• Patent Identification: U.S. Patent No. 7,639,943, "Computer-Implemented System and Method for Automated Image Uploading and Sharing From Camera-Enabled Mobile Devices," issued December 29, 2009 Compl. ¶¶1 Compl. ¶48
• Technology Synopsis: The invention is a system for automatically capturing a plurality of images with a camera-enabled mobile device and uploading them to a network server, all without requiring user action for each individual capture or upload '943 Patent, abstract This enables periodic, automated visual data collection from a remote device '943 Patent, col. 3:41-49
• Asserted Claims: Independent claim 1 Compl. ¶51 Compl. ¶77
• Accused Features: The complaint alleges that Lytx products, which perform automated image uploading, infringe this patent Compl. ¶50 Compl. ¶53 Compl. ¶94

Multi-Patent Capsule: U.S. Patent No. 7,460,737 - "Method and Apparatus for Photograph Finding"

• Patent Identification: U.S. Patent No. 7,460,737, "Method and Apparatus for Photograph Finding," issued December 2, 2008 Compl. ¶¶1 Compl. ¶57
• Technology Synopsis: The patent details a method for organizing and finding photographs by collecting digital images, automatically analyzing them to assign descriptive data (e.g., via facial or marker recognition), storing the images and data in a database, and allowing users to search the database using criteria that match the assigned descriptions '737 Patent, abstract '737 Patent, col. 4:46-60
• Asserted Claims: Independent claim 1 Compl. ¶60 Compl. ¶77
• Accused Features: The complaint alleges that Lytx products, which involve analyzing and searching digital image data, infringe this patent Compl. ¶59 Compl. ¶62 Compl. ¶94

Multi-Patent Capsule: U.S. Patent No. 7,388,848 - "Method and Apparatus for Transport Format Signaling With HARQ"

• Patent Identification: U.S. Patent No. 7,388,848, "Method and Apparatus for Transport Format Signaling With HARQ," issued June 17, 2008 Compl. ¶¶1 Compl. ¶66
• Technology Synopsis: This invention relates to signaling in wireless networks that use Hybrid Automatic Repeat Request (HARQ). It proposes using a single bit "flag" to inform a receiving device whether control information in a current transmission is sufficient for decoding, or if information from an earlier transmission is also required. This simplifies the signaling logic for data retransmissions '848 Patent, abstract '848 Patent, col. 4:46-59
• Asserted Claims: Independent claim 1 Compl. ¶69 Compl. ¶77
• Accused Features: The complaint alleges that Lytx products using 4G LTE technology provide a "current transmission with a bit pattern" that infringes this patent Compl. ¶68 Compl. ¶71 Compl. ¶94

III. The Accused Instrumentality

• Product Identification: The accused products are various fleet management and safety systems provided by Lytx, Inc., including the "Lytx Fleet Dashcam & Driver Safety," "Lytx DriveCam Event Recorder," and "Lytx Proactive Fleet Safety Solutions" Compl. ¶18
• Functionality and Market Context: The complaint alleges that AmeriGas uses these products to track and analyze vehicle locations, monitor driver behavior, manage real-time event alerts, and facilitate communication between fleet managers and vehicles Compl. ¶19 AmeriGas is alleged to promote its use of these Lytx systems, with its Vice President of Operations Support quoted as crediting the "DriveCam driver safety program" for preventing accidents Compl. ¶17 The complaint includes a screenshot from the AmeriGas website's location finder and a Google Maps image of an AmeriGas facility in Wylie, Texas, to support its venue allegations Compl. p. 5

IV. Analysis of Infringement Allegations

8,098,277 Infringement Allegations

Claim Element (from Independent Claim 14)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
capturing video data including a space occupied by a user of a mobile communication device;	The Lytx dashcams are alleged to monitor driver safety through "integrated dashcam video," thereby capturing video data of the driver (the user).	¶19	col. 3:31-34
determining an identity of the user based on the video data or information transmitted by the mobile communication device;	The accused products are alleged to identify "individualized content," which suggests the system determines the identity of the user/vehicle.	¶26; ¶94	col. 4:45-49
identifying individualized content associated with the determined identity; and	The complaint alleges the accused products perform this step by, for example, causing the products to perform the step of "identifying individualized content."	¶26	col. 6:47-52
presenting an interactive image that is customized at least partly based on the individualized content on a display.	The system is alleged to manage "real-time alerts" and allow "communication between fleet managers and remote in-vehicle units," constituting a customized display.	¶19	col. 8:58-62

• Identified Points of Contention:
  • Scope Questions: A central question may be whether the patent's concept of a "user" with a "mobile communication device" (contextually a consumer with a personal phone interacting with a public display) can be construed to cover a commercial truck driver whose "device" is a professionally installed, vehicle-integrated dashcam system.
  • Technical Questions: The complaint's allegations that the system identifies "individualized content" and presents a "customized" image are stated in conclusory terms Compl. ¶26 The court may need to determine what specific technical functions of the Lytx system correspond to these claimed steps and whether operational data like vehicle speed qualifies as "individualized content" in the context of the '277 patent.

RE44,797 Infringement Allegations

Claim Element (from Independent Claim 53)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
identifying, by a processing device in user equipment, contents of a message transmitted in a first time interval by the user equipment to a base station; and	The accused products are alleged to utilize 4G LTE and are "specially adapted for scheduling information," implying they identify the contents of their own transmissions.	¶68; ¶94	col. 4:50-53
disregarding, by the processing device, a serving relative grant for a transmission during a second time interval based on the contents of the message.	The complaint alleges infringement of this claim, which suggests the accused products are programmed to disregard relative grants under specific conditions.	¶33; ¶94	col. 4:63-67

• Identified Points of Contention:
  • Technical Questions: A key factual question will be whether the accused Lytx products, which are high-level application systems, actually implement the specific, low-level Medium Access Control (MAC) layer logic for handling "serving relative grants" as defined by the HSUPA protocol and claimed in the '797 patent. Infringement requires showing the device performs this exact conditional operation.
  • Scope Questions: The court may need to consider whether the "user equipment" as claimed, which in the patent's context is a cellular modem, is properly mapped to the entire accused system (e.g., the "Lytx DriveCam Event Recorder") as the complaint alleges Compl. ¶34

V. Key Claim Terms for Construction

For the '277 Patent:

• The Term: "individualized content"
• Context and Importance: This term is critical because the claim requires identifying this content and then customizing a display based on it. The viability of the infringement claim hinges on whether the operational data collected by the Lytx system (e.g., driver behavior, vehicle location) can be defined as "individualized content" in the sense contemplated by the patent. Practitioners may focus on this term because its definition will determine if generic vehicle data falls within the scope of a patent seemingly directed at user-specific personalization.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The specification provides a broad definition, stating the term may comprise "any communication or information specific to the particular user or the mobile communication device" '277 Patent, col. 3:35-38
  • Evidence for a Narrower Interpretation: The patent's examples of individualized content are personal and user-centric, such as a user's game character, submitted photos, or a unique coupon code '277 Patent, col. 6:52-54 '277 Patent, col. 7:1-4 This may support a narrower construction limited to user-generated or user-selected information, rather than passively collected vehicle metrics.

For the '797 Patent:

• The Term: "scheduling information event alone"
• Context and Importance: Although not in the asserted independent claim, this phrase from the specification is the core of the inventive concept that gives meaning to claim 53's step of "disregarding" a grant "based on the contents of the message." The entire infringement case for this patent will likely turn on whether the accused devices transmit messages containing "scheduling information event alone" and then perform the claimed "disregarding" step.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The patent does not appear to offer a broader interpretation, as the term is a specific technical condition.
  • Evidence for a Narrower Interpretation: The specification defines "Scheduling Information" as comprising specific data fields like "Highest priority Logical channel ID," "Total E-DCH Buffer Status," and "UE Power Headroom" '797 Patent, col. 3:1-35 The condition "alone" is critical, meaning the transmission occurs without any scheduled data. This provides a precise, technical definition that will be central to the infringement analysis.

VI. Other Allegations

• Indirect Infringement: The complaint alleges both induced and contributory infringement for all asserted patents Compl. ¶75 Compl. ¶92 Inducement is based on allegations that AmeriGas advised and directed customers to use the products in an infringing manner and distributed instructions Compl. ¶78 Contributory infringement is based on the allegation that the accused products have "special features" with "no substantial uses other than ones that infringe" the asserted patents Compl. ¶93
• Willful Infringement: Willfulness is alleged for all asserted patents Compl. ¶101 The basis includes post-suit knowledge, as the complaint states AmeriGas had knowledge of each patent "at least as of the date when it was notified of the filing of this action" (e.g.,Compl. ¶27). The complaint also alleges pre-suit willful blindness, claiming AmeriGas has a "policy or practice of not reviewing the patents of others" Compl. ¶99

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

• A core issue will be one of definitional scope: can terms like "user" and "mobile communication device," rooted in the '277 patent's context of a consumer interacting with a public display, be construed to cover a commercial driver and an integrated in-vehicle dashcam system?
• A key evidentiary question will be one of protocol-level implementation: does the accused Lytx system, an application-layer fleet management product, in fact perform the specific, low-level MAC-layer logic for handling "serving relative grants" as required by the '797 patent and the HARQ signaling required by the '848 patent?
• A central question of functionality will be whether the aggregate operation of a fleet safety system-which tracks vehicles, monitors drivers, and reports data-constitutes infringement of a collection of six distinct patents covering specific methods for personalized displays, image database searching, and wireless protocol signaling, or if there is a fundamental mismatch between the accused system's functions and the specific steps recited in the patent claims.