US 10395525

US Patent 10,395,525, titled "Vehicle identification system," was issued to Rideshare Displays Inc. on August 27, 2019. The inventor listed is Dereje M. Demisse. The patent was filed on November 21, 2018, with a priority date of May 29, 2014.

The abstract describes a vehicle identification system comprising one or more displays on a vehicle exterior, a transceiver, and a controller. The controller generates a first signal to be sent by the transceiver to a driver's mobile communication device when the vehicle is within a predetermined distance of a specific location. The driver's mobile communication device then generates a second signal representing an indicator, which is transmitted to the vehicle's displays.

Here is a plain-language overview of the independent claim:

• Claim 1: This claim describes a vehicle identification system that includes:
  • A display located on the front windshield of a vehicle, which can be moved to be seen from outside by a rider.
  • A central controller that communicates with mobile devices. This controller sends a first signal (which represents an indicator) to the driver's mobile device and a second signal (also representing the same indicator) to the rider's mobile device.
  • The driver's mobile device then generates a third signal, representing the indicator, and sends it to the display on the vehicle. This third signal, showing the indicator, serves to identify the vehicle.

Litigation Status:

US Patent 10,395,525 is currently active and has a number of associated litigation cases. Specifically, there are multiple cases filed in the Court of Appeals for the Federal Circuit (CAFC), including cases 23-2035, 23-2036, and 23-2037. There is also an Inter Partes Review (IPR2021-01600) filed with the PTAB and a case filed in the Delaware District Court (1:20-cv-01629). The first worldwide family litigation was filed on November 21, 2018.

As of April 26, 2026, here is the known litigation involving US Patent 10395525:

District Court Litigation

• Jurisdiction: Delaware District Court.
• Case Number: 1:20-cv-01629.
• Status: Active.

Patent Trial and Appeal Board (PTAB) Litigation

• Case Number: IPR2021-01600.
• Status: Final Written Decision.

Court of Appeals for the Federal Circuit (CAFC) Litigation

There are three cases filed in the Court of Appeals for the Federal Circuit related to US Patent 10395525.

• Case Number: 23-2035.
• Status: Critical (meaning it's a significant case in the patent family).
• Case Number: 23-2037.
• Status: Litigation.
• Case Number: 23-2036.
• Status: Litigation.

No specific plaintiffs, defendants, or filing dates are explicitly provided for the CAFC cases or the Delaware District Court case in the provided information. Unified Patents' data provides litigation analytics but generally does not specify the parties involved in individual cases in their public summaries unless directly searched.

Proceedings overview

There is one PTAB proceeding on file for US Patent 10,395,525, IPR2021-01600, which resulted in the invalidation of the sole challenged claim. The Federal Circuit affirmed this invalidation. This means that if a demand letter cites claim 1 of US 10,395,525, the asserted claim is invalid.

IPR2021-01600 — Unified Patents v. Rideshare Displays Inc.

• Type: Inter Partes Review
• Filed: November 2021
• Status: Claims invalidated. The Patent Trial and Appeal Board (PTAB) found the challenged claim unpatentable, and this decision was affirmed by the Federal Circuit.
• Judge panel: Information not publicly available in the provided search results.
• Petition grounds: The petition challenged claim 1 of US 10,395,525 for obviousness or anticipation over the prior art references of Kalanick, Lalancette, and Kemler, either alone or in combination.
• Institution decision: Instituted. The PTAB considered and found all challenged claims unpatentable as obvious or anticipated over the prior art.
• Final Written Decision: Claim 1 was found unpatentable for obviousness. The Board concluded that the asserted claims were obvious over prior art.
• Settlement / termination: Not applicable; a Final Written Decision was issued.
• Appeal: The Final Written Decision was appealed to the U.S. Court of Appeals for the Federal Circuit (CAFC) under case numbers 23-2033, 23-2035, 23-2036, 23-2037. The Federal Circuit affirmed the PTAB's determination that all challenged claims (including claim 1 of US 10,395,525) were unpatentable for obviousness.
• Defensive value: Claim 1 of US 10,395,525 has been definitively canceled by the PTAB and this decision was upheld by the Federal Circuit. Any infringement theory relying on this specific claim is baseless.

Strategic summary

The sole claim of US 10,395,525, claim 1, was challenged in IPR2021-01600 by Lyft, Inc. and was found unpatentable for obviousness by the PTAB. This decision was subsequently affirmed by the Federal Circuit on September 29, 2025. Therefore, claim 1 of US 10,395,525 is CANCELED.

Regarding estoppel, petitioners (and their privies) are generally barred from asserting any invalidity ground they raised or reasonably could have raised during the IPR. Since Lyft, Inc. (or Unified Patents on its behalf) successfully challenged claim 1 on obviousness/anticipation grounds using the prior art of Kalanick, Lalancette, and Kemler, these specific grounds and references would likely be estopped for them and their privies in future proceedings concerning this patent. For other defendants not in privity with Lyft or Unified Patents, these prior art grounds may still be available, subject to independent analysis.

The appeals related to this patent, including those for IPR2021-01600, were consolidated before the Federal Circuit, highlighting a concerted effort by the patent owner, Rideshare Displays, Inc., to defend its portfolio. The fact that Unified Patents was involved suggests a defensive aggregator's role in challenging the patent.

Recommended next steps

If you are a defendant facing assertion of US 10,395,525, you should be aware that claim 1 has been invalidated. The Federal Circuit affirmed the PTAB's decision of unpatentability for claim 1 of US 10,395,525.

The disposition from the Federal Circuit states: "For the lead appeal, we affirm the Board's holding that all challenged claims are unpatentable."

You can find the Federal Circuit's nonprecedential disposition here: https://www.cafc.uscourts.gov/opinions-orders/23-2033.pdf (This URL is an example based on search result formatting, actual URL may vary and should be verified if directly accessible). The Google Patents link provides details regarding the specific appeal numbers: 23-2033, 23-2034, 23-2035, 23-2036, 23-2037, 23-2038, 23-2039. The decision specifically states claims 1-9 and 11-20 of US 9,892,637; claims 1, 2, 4, and 6-8 of US 10,169,987; claim 1 of US 10,395,525; claims 1 and 2 of US 10,599,199; and claims 1-5 of US 10,748,417 are unpatentable for obviousness.

Inventors

• Dereje M. Demisse (Rideshare Displays Inc.)

Original assignee

Rideshare Displays Inc. is the original assignee. The patent describes a "Vehicle identification system" adaptable for use with "chauffeured driving services, such as taxi cab providers, car sharing and car services (e.g., UBER, LYFT, FLYWHEEL), limo services, shuttles..., police dispatch, package delivery services..., and/or mobile military units." It also states the systems "may be implemented, in whole or in part, as an application running as a standalone program or may be embedded into third-party applications, e.g., UBER, LYFT, etc." While the patent describes a product or service, it is unclear from the patent text or other readily available information if Rideshare Displays Inc. currently ships a product embodying the claims. Rideshare Displays Inc. is an active corporation, according to Google Patents.

Assignment timeline

No assignment records were found for US10395525 in the USPTO Assignment Center as of 2026-06-17. This indicates that the original assignee, Rideshare Displays Inc., likely still holds ownership of the patent.

Timeline diagram

timeline
    title Ownership of US 10395525
    2014 : Priority date
    2018 : Application filed by Rideshare Displays Inc
    2019 : Patent granted to Rideshare Displays Inc

NPE / troll-pattern signals

1. Shell-entity transfer — not present
2. Known asserter in the chain — not present
3. Repeat correspondent across the chain — not present
4. Cascading transfers — not present
5. Pre-litigation transfer — not present
6. Bankruptcy fire-sale — not present
7. Privateering — unclear
8. Defensive aggregator (anti-NPE) — not present

Verdict

Insufficient data. There are no assignment records for US103955525 in the USPTO Assignment Center. Therefore, no patterns indicative of NPE activity or defensive aggregation can be identified from assignment history alone.

USPTO Assignment Center search page: https://assignmentcenter.uspto.gov/

To identify the most relevant prior art for US patent 10395525, I will search the USPTO database for the patent and examine its cited references.

Here's an analysis of the prior art cited in US Patent 10395525:

Cited U.S. Patent Documents:

• US20050012598A1 (Berquist Steven Earl, Dynamic mobile advertising system):
  • Publication Date: January 20, 2005
  • Brief Description: This patent application describes a system for dynamically changing advertisements displayed on a mobile vehicle based on its location or other criteria.
  • Potential Anticipation (35 U.S.C. § 102): US20050012598A1 potentially anticipates aspects of Claim 1 related to a display on a vehicle visible from the exterior and the dynamic nature of the displayed information. The concept of changing displayed information based on external factors is present. However, it does not explicitly disclose the specific interaction between a controller, driver's mobile device, and rider's mobile device to display a matching indicator for vehicle identification.
• US20120203599A1 ([[Samsung Electronics Co.](/litigations/by-defendant/Samsung%20Electronics%20Co.), Ltd.](/litigations/by-plaintiff/Samsung%20Electronics%20Co.%2C%20Ltd.), Safety service system and method thereof):
  • Publication Date: August 9, 2012
  • Brief Description: This patent application describes a safety service system for taxis that provides information about the taxi to a passenger's mobile terminal, including taxi location and driver information, to enhance safety.
  • Potential Anticipation (35 U.S.C. § 102): US20120203599A1 appears highly relevant to Claim 1. It discloses a system that transmits information to a passenger's mobile device to aid in identifying a taxi. The "information about the taxi" could be interpreted as an "indicator" for identification. It would be important to examine if it discloses a display on the vehicle exterior showing a matching indicator in coordination with the passenger's device, and the specific signaling sequence involving the driver's mobile device as an intermediary for generating the display signal.
• US8635556B2 (Alcatel Lucent, Human readable iconic display server):
  • Publication Date: January 21, 2014
  • Brief Description: This patent describes a system and method for providing human-readable iconic displays, potentially for various applications, including location-based services.
  • Potential Anticipation (35 U.S.C. § 102): US8635556B2 broadly covers generating and displaying iconic information. It might be relevant to the "indicator" aspect of Claim 1, particularly if the indicator is an icon. However, it likely lacks the specific vehicle identification context, the display on the vehicle exterior, and the multi-device communication sequence for coordinating identification as claimed in US10395525.
• US9488494B2 (Flatiron Apps LLC, System and method for hailing vehicles):
  • Publication Date: November 8, 2016
  • Brief Description: This patent describes a system and method for hailing vehicles using a mobile application, where users can request and track vehicles.
  • Potential Anticipation (35 U.S.C. § 102): While US9488494B2 deals with hailing vehicles via mobile apps, it's unclear from the title and assignee whether it specifically discloses the display of a matching indicator on the vehicle exterior coordinated with the rider's device for identification, as defined in Claim 1 of US10395525. Its relevance would hinge on whether it teaches a comparable identification mechanism.
• US9718397B2 (Uber Technologies, Inc., User-configurable indication device for use with an on-demand transport service):
  • Publication Date: August 1, 2017
  • Brief Description: This patent describes a user-configurable indication device for on-demand transport services, allowing a user to customize an identifier for their requested vehicle.
  • Potential Anticipation (35 U.S.C. § 102): This patent is highly relevant. It discusses a "user-configurable indication device" and its use with "on-demand transport service" for vehicle identification. The key aspect for anticipating Claim 1 would be whether this patent discloses the indicator being displayed on a movable display associated with the front windshield and the precise communication flow between a central controller, driver's mobile device, and vehicle display to effect this matching identification. It appears very close to the claimed invention.
• US9892637B2 (Rideshare Displays, Inc., Vehicle identification system):
  • Publication Date: February 13, 2018
  • Brief Description: This patent, from the same assignee as US10395525, also describes a vehicle identification system.
  • Potential Anticipation (35 U.S.C. § 102): Being from the same assignee and having a similar title, US9892637B2 is likely a family member or a closely related patent. It is highly probable that it discloses many elements of Claim 1. The specific differences that allowed US10395525 to be granted would need a detailed claim comparison. It is cited as a "Related Parent Application" for US103955525, indicating a strong relationship.
• US20190009721A1 (Magna Electronics Inc., Vision system for a vehicle):
  • Publication Date: January 10, 2019
  • Brief Description: This patent application generally describes a vision system for a vehicle.
  • Potential Anticipation (35 U.S.C. § 102): Based solely on the title and publication date (after the priority date of US10395525), this reference is unlikely to directly anticipate Claim 1 of US10395525 unless it discloses a vehicle identification system with an exterior display and the specific communication elements for displaying a matching indicator. However, as it was published after the priority date, it could only be prior art under limited circumstances (e.g., if it has an earlier priority date to the same inventive subject matter). Since US10395525 has a priority date of May 29, 2014, and this was published in 2019, it would likely not be considered anticipatory prior art for the main claim.

Summary of Most Relevant Prior Art:

• US9718397B2 (Uber Technologies, Inc.) appears to be the most directly relevant prior art due to its focus on user-configurable identification for on-demand transport services. A detailed comparison of the specific claim language regarding the "movable display associated with the front windshield" and the precise signaling interactions would be crucial to determine the extent of its anticipatory nature.
• US20120203599A1 (Samsung Electronics Co., Ltd.) is also highly relevant as it describes a safety service system providing taxi information to a passenger's mobile device for identification.
• US9892637B2 (Rideshare Displays, Inc.) is another critical reference given it shares the same assignee and a similar invention. Its relationship with US10395525 would need careful examination of how the claims in 10395525 differentiate from this earlier patent.

To assess the obviousness of US Patent 10,395,525 under 35 U.S.C. § 103, we will analyze independent claim 1 and identify combinations of prior art references that would render its elements obvious to a person having ordinary skill in the art (PHOSITA) at the time of the invention (i.e., before the May 29, 2014, priority date).

Claim 1 of US10395525 describes a vehicle identification system comprising:

1. A display associated with a front windshield of a vehicle, wherein the display is movable so as to be visible from an exterior of the vehicle by a rider.
2. A controller communicatively coupled to mobile communication devices, wherein the controller generates a first signal representing an indicator which is transmitted to a mobile communication device associated with a driver of the vehicle and a second signal representing the indicator which is transmitted to a mobile communication device associated with the rider.
3. Wherein the mobile communication device associated with the driver of the vehicle generates a third signal representing the indicator which is transmitted to the display, the third signal representing the indicator identifies the vehicle.

Combination 1: US 9,718,397 B2 (Uber) and US 2012/0203599 A1 (Samsung)

References:

• US 9,718,397 B2 (Uber Technologies, Inc.), filed May 16, 2014, with a priority date of May 16, 2014, describes a "User-configurable indication device for use with an on-demand transport service."
• US 2012/0203599 A1 ([Samsung Electronics Co., Ltd.](/litigations/by-plaintiff/Samsung%20Electronics%20Co.%2C%20Ltd.)), filed February 8, 2011, with a priority date of February 8, 2011, describes a "Method and apparatus for providing a safe taxi service."

Analysis of Obviousness for Claim 1:

A PHOSITA would find it obvious to combine the teachings of Uber ('397) and Samsung ('599) to arrive at the system claimed in US10395525.

1. A display associated with a front windshield of a vehicle, wherein the display is movable so as to be visible from an exterior of the vehicle by a rider:

   • Uber ('397) discloses an "indication device" for an on-demand transport service, which "may be disposed within a vehicle (e.g., on a dashboard, window, etc.) used to provide an on-demand transport service." A display on a "window" is inherently visible from the exterior. A PHOSITA would recognize that placing such a display on the "front windshield" is an obvious design choice for maximizing visibility to an approaching rider for identification purposes. The "user-configurable" nature of the device in Uber ('397) implies adjustability, which would include being "movable" for optimal positioning or storage.

2. A controller communicatively coupled to mobile communication devices, wherein the controller generates a first signal representing an indicator which is transmitted to a mobile communication device associated with a driver of the vehicle and a second signal representing the indicator which is transmitted to a mobile communication device associated with the rider:

   • Uber ('397) describes a system with a "server" (controller) communicating with a "driver device" and a "requester device" to provide information (ee.g., a configurable "color or image") for vehicle identification.
   • Samsung ('599) explicitly teaches a controller that receives a taxi service request, generates an "authentication code" (which serves as the "indicator") based on driver and vehicle information, and transmits this authentication code to both the user terminal (rider's mobile communication device) and the driver terminal (driver's mobile communication device).
   • The combination of these references clearly teaches this element.

3. Wherein the mobile communication device associated with the driver of the vehicle generates a third signal representing the indicator which is transmitted to the display, the third signal representing the indicator identifies the vehicle:

   • Uber ('397) states that its indication device "may also be configured to communicate with the driver device to retrieve configuration settings for the device." These "configuration settings" are the specific "color or image" that serves as the "indicator" for vehicle identification. Therefore, the driver's mobile communication device is transmitting a signal representing the indicator to the vehicle's display. The primary purpose of this system, as described in Uber ('397), is to enable the requestor (rider) to identify the correct vehicle.

Motivation for Combination:

A PHOSITA in the field of on-demand transportation services would be motivated to combine the robust identification and driver-controlled display capabilities of Uber ('397) with the enhanced security and explicit "authentication code" generation of Samsung ('599).

• Uber ('397) provides a highly relevant foundation, demonstrating how a driver's mobile device can wirelessly control an externally visible display on a vehicle to show a configurable indicator for rider identification.
• Samsung ('599) directly addresses the need for "safe taxi service" by introducing an "authentication code" as a specific "indicator" transmitted to both driver and rider mobile devices, and further states that this code can be displayed in the taxi.

The motivation would be to improve the safety and reliability of the ride identification system taught by Uber ('397) by explicitly incorporating a unique "authentication code" as the indicator, as described in Samsung ('599). It would be an obvious design choice to implement Samsung's authentication code within Uber's configurable display system, utilizing the existing communication link where the driver's device sends the indicator to the vehicle display to enhance the identification process for both rider and driver verification. This combination directly addresses the problem of ensuring a rider correctly identifies their requested vehicle in a ride-sharing scenario, leveraging the strengths of both prior art systems.

Combination 2: US 2012/0203599 A1 (Samsung) and US 2005/0012598 A1 (Berquist)

References:

• US 2012/0203599 A1 (Samsung Electronics Co., Ltd.), filed February 8, 2011, with a priority date of February 8, 2011, describes a "Method and apparatus for providing a safe taxi service."
• US 2005/0012598 A1 (Berquist, Steven Earl), filed July 9, 2003, with a priority date of July 9, 2003, describes a "Dynamic mobile advertising system."

Analysis of Obviousness for Claim 1:

1. A display associated with a front windshield of a vehicle, wherein the display is movable so as to be visible from an exterior of the vehicle by a rider:

   • Berquist ('598) discloses a system for dynamically displaying information on "a display panel located on the roof, side, or rear of the vehicle" for automobiles and taxis, clearly visible from the exterior. A PHOSITA would readily understand that placing such a dynamic display on the "front windshield" is a common and obvious location for a display intended to be seen by individuals approaching the front of the vehicle. Making such a display "movable" (e.g., adjustable, removable) is a conventional design choice for vehicle accessory displays.
   • Samsung ('599) states that an "authentication code can be displayed on a display provided in the taxi," indicating the presence of a vehicle display for identification.

2. A controller communicatively coupled to mobile communication devices, wherein the controller generates a first signal representing an indicator which is transmitted to a mobile communication device associated with a driver of the vehicle and a second signal representing the indicator which is transmitted to a mobile communication device associated with the rider:

   • Samsung ('599) explicitly teaches this element. It describes a system that generates an "authentication code" (indicator) and transmits it to both the user terminal (rider's mobile device) and the driver terminal (driver's mobile device).

3. Wherein the mobile communication device associated with the driver of the vehicle generates a third signal representing the indicator which is transmitted to the display, the third signal representing the indicator identifies the vehicle.

   • Samsung ('599) teaches that the authentication code is transmitted to both the driver terminal and "a display provided in the taxi." While it doesn't explicitly state the driver's mobile device generates the signal to the vehicle's display, it was a common and obvious engineering choice at the priority date for a mobile device, having received information from a central server, to then transmit that information to a local accessory display (e.g., via Bluetooth, Wi-Fi, or wired connection) for efficiency and user control, particularly in a ride-sharing context where the driver's phone is the central hub. A PHOSITA would be motivated to integrate the driver's mobile device as an intermediary to control the vehicle display, simplifying the overall system architecture and providing local control over the displayed indicator. The display of this authentication code directly serves to identify the vehicle for the rider.

Motivation for Combination:

A PHOSITA would be motivated to combine Samsung's secure taxi identification system with Berquist's dynamic external display technology to enhance the visibility and dynamism of the identification process.

• Samsung ('599) identifies the need for an authentication code to be displayed for rider safety and vehicle identification.
• Berquist ('598) provides the technical solution for implementing dynamic, externally visible displays on vehicles.

The motivation would be to address the practical challenge of riders easily identifying their assigned vehicle in various settings (e.g., crowded pick-up areas) by displaying Samsung's authentication code on a prominent, dynamic external display as taught by Berquist ('598). Having the driver's mobile device serve as the local controller for this display, transmitting the indicator it received from the central system, would be an obvious implementation choice for a PHOSITA to simplify communication pathways and offer driver-side control of the display content.