Untitled case

Case Overview and Background

This patent infringement litigation, Carma Technology, Corp., et al. v. Uber Technologies, Inc., Case No. 2:25-cv-00029, was filed in the Eastern District of Texas, Marshall Division, on January 14, 2025. The plaintiffs are Carma Technology, Corp. and Carma Technology, Ltd. (collectively, "Carma"), entities that have pioneered smartphone-based ridesharing, vehicle occupancy verification, and mobility-as-a-service technologies. Carma asserts that it developed early ridesharing applications and related software, and its sole named inventor, Sean O'Sullivan, is a recognized technologist and entrepreneur. The defendant is Uber Technologies, Inc. ("Uber"), a prominent operating company in the ridesharing and delivery services industry.

Carma accuses Uber's ridesharing and delivery services of infringing U.S. Patent No. 7,840,427, among others. Patent '427, titled "Shared transport system and service network," describes a system that matches spare transport capacity in vehicles with transportation demand from individuals or for goods. This is achieved through an electronic registry of available capacity and demand, combined with a central processing unit to facilitate matches. The allegedly infringing features in Uber's services include aspects related to driver matching, soliciting ratings, managing pickups along a route, and monitoring ride safety. Carma alleges that Uber has been aware of the asserted patents and its infringing conduct since at least 2016.

The case is being heard in the U.S. District Court for the Eastern District of Texas, Marshall Division, with Chief Judge Rodney Gilstrap assigned to preside and Magistrate Judge Roy S. Payne as the referred judge. This venue has historically been a significant hub for patent litigation, often referred to as a "rocket docket" due to its expedited case timelines and plaintiff-friendly reputation. The notability of this case stems from the assertion of foundational ridesharing patents against a major industry player like Uber. Uber has already initiated inter partes review (IPR) proceedings at the Patent Trial and Appeal Board (PTAB) for patent 7840427 and other patents involved in the litigation, a common defensive strategy in patent disputes.

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The user wants a chronological list of key legal developments and outcomes for the patent infringement case 2:25-cv-00029, Carma Technology v Uber Technologies.
I need to cover:

• Filing & initial pleadings (complaint, answer, counterclaims).
• Pre-trial motions of substance (dismiss, transfer, stay, summary judgment).
• Claim construction (Markman) outcomes.
• Discovery milestones.
• Trial events, verdict, post-trial motions.
• Final disposition (settlement, dismissal, judgment, appeal).
• Parallel PTAB IPR/PGR proceedings and their effect.

I will use the provided web search results to gather this information. I already know the filing date (January 14, 2025) and some upcoming dates (claim construction hearing June 9, 2026; case management conference September 28, 2026). I also know about IPR2026-00305.

Let's break down the search results for each section.

Filing & initial pleadings:

• The complaint was filed on January 14, 2025. I need to find the date of Uber's answer and any counterclaims.

Pre-trial motions of substance:

• I will look for motions to dismiss, transfer, stay, or for summary judgment.

Claim construction (Markman) outcomes:

• The previous summary mentions a claim construction hearing scheduled for June 9, 2026. I need to check if there's an outcome or order available after this date. Given today's date is May 29, 2026, the hearing hasn't happened yet, so there won't be an outcome yet. I will note the scheduled date.

Discovery milestones:

• I'll look for any significant discovery orders or disputes.

Trial events, verdict, and post-trial motions:

• Since the case is still in pre-trial phases, it's unlikely there will be trial events or verdicts yet.

Settlement, dismissal, judgment, or appeal:

• Unlikely given the current stage.

Parallel PTAB IPR/PGR proceedings:

• The previous summary mentioned IPR2026-00305 against the '427 patent. I need to check its status (institution, final written decision). I should also search for other IPRs filed by Uber against the '427 patent or any other patents in this case, even if not explicitly mentioned in the previous summary, to ensure completeness.

Let's process the search results.

Search result 1 provides a good overview of the docket.

• Filing: Complaint filed 2025-01-14.
• Answer/Counterclaims: Uber Technologies Inc. and Uber Freight Holding Corp. filed their Answer to the Complaint, Affirmative Defenses, and Counterclaims for Non-Infringement and Invalidity on 2025-04-14.
• Motions to Transfer/Dismiss:
  • Uber filed a Motion to Transfer Venue to the Northern District of California on 2025-05-28.
  • Carma Technology filed a Motion to Strike Uber's Affirmative Defenses and Counterclaims on 2025-05-15.
  • Order denying Uber's Motion to Transfer Venue on 2025-10-27.
• Claim Construction:
  • Markman Hearing (Claim Construction Hearing) held on 2026-06-09. (This is a future date, as noted).
• Discovery:
  • Joint Claim Construction & Discovery Plan filed 2025-06-15.
  • Order Setting Initial Pretrial Conference and Scheduling Order issued on 2025-04-20.
• PTAB IPRs:
  • IPR2026-00305 was filed on 2025-12-07 against U.S. Patent No. 7,840,427.
  • PTAB decision to institute IPR2026-00305 on 2026-05-20. This is a significant development.
  • There is a PTAB decision instituting IPR2026-00304 as well, filed on 2025-12-07, also against the '427 patent. It was also instituted on 2026-05-20. This means Uber filed at least two IPRs against the '427 patent.
  • It is likely Uber also filed a motion to stay the district court litigation pending the IPR outcomes, given the institution. I need to search for that.
  • The district court docket (search result 1) shows a "Motion to Stay Pending IPR Decisions" filed by Uber Technologies Inc. and Uber Freight Holding Corp. on 2026-05-21. This motion was filed shortly after the IPRs were instituted.

Now I will structure the answer chronologically.Here are the key legal developments and outcomes for the patent infringement litigation Carma Technology, Corp. et al v. Uber Technologies Inc. (2:25-cv-00029), presented chronologically:

Key Legal Developments and Outcomes

• 2025-01-14 – Complaint Filed: Carma Technology, Corp. and Carma Technology Ltd. initiated the patent infringement lawsuit against Uber Technologies Inc. and Uber Freight Holding Corp. in the Eastern District of Texas.
• 2025-04-14 – Answer and Counterclaims Filed: Uber Technologies Inc. and Uber Freight Holding Corp. filed their Answer to the Complaint, along with Affirmative Defenses and Counterclaims for Non-Infringement and Invalidity.
• 2025-04-20 – Initial Scheduling Order: The court issued an Order Setting Initial Pretrial Conference and Scheduling Order, outlining the initial timeline for the case.
• 2025-05-15 – Motion to Strike: Carma Technology filed a Motion to Strike Uber's Affirmative Defenses and Counterclaims.
• 2025-05-28 – Motion to Transfer Venue: Uber filed a Motion to Transfer Venue, seeking to move the case to the Northern District of California.
• 2025-06-15 – Joint Claim Construction & Discovery Plan: The parties filed their Joint Claim Construction and Discovery Plan.
• 2025-10-27 – Motion to Transfer Denied: The court denied Uber's Motion to Transfer Venue.
• 2025-12-07 – IPR Petitions Filed: Uber Technologies Inc. filed two inter partes review (IPR) petitions with the Patent Trial and Appeal Board (PTAB) against U.S. Patent No. 7,840,427, specifically IPR2026-00304 and IPR2026-00305.
• 2026-05-20 – IPRs Instituted: The PTAB issued decisions to institute both IPR2026-00304 and IPR2026-00305 against U.S. Patent No. 7,840,427. This means the PTAB determined that Uber had a reasonable likelihood of prevailing on at least one claim challenged in each IPR.
• 2026-05-21 – Motion to Stay Pending IPR Decisions: Following the institution of the IPRs, Uber Technologies Inc. and Uber Freight Holding Corp. filed a Motion to Stay the district court litigation pending the outcomes of the PTAB proceedings.
• 2026-06-09 – Claim Construction (Markman) Hearing: A Markman hearing (claim construction hearing) is scheduled to be held. (As of today's date, May 29, 2026, this hearing has not yet occurred, so there is no outcome to report).
• 2026-09-28 – Case Management Conference: A case management conference is scheduled.

Parallel PTAB IPR Proceedings

Uber Technologies Inc. has actively challenged the asserted patent, U.S. Patent No. 7,840,427, at the Patent Trial and Appeal Board (PTAB). Two IPRs, IPR2026-00304 and IPR2026-00305, were filed on December 7, 2025. Both IPRs were instituted by the PTAB on May 20, 2026, indicating that the PTAB found a sufficient likelihood that at least some claims of the '427 patent are unpatentable. The institution of these IPRs led to Uber filing a motion with the district court on May 21, 2026, requesting a stay of the litigation pending the final decisions from the PTAB. The outcome of this motion to stay is currently pending.

In the patent infringement case Carma Technology, Corp. et al. v. Uber Technologies Inc. et al. (Case No. 2:25-cv-00029) in the Eastern District of Texas, the following attorneys have been identified as representing the plaintiffs, Carma Technology, Corp. and Carma Technology, Ltd.:

Plaintiff Representatives

• Gareth Edward DeWalt

  • Role: Counsel
  • Firm: Bunsow De Mory LLP
  • Office Location: Contact info for Bunsow De Mory LLP provided by PacerMonitor.
  • Relevant Experience: The firm Bunsow De Mory LLP is listed as representing the plaintiff.

• Jennifer Leigh Truelove

  • Role: Counsel
  • Firm: McKool Smith, P.C. - Marshall
  • Office Location: Marshall, Texas
  • Relevant Experience: McKool Smith is a well-known firm in patent litigation, particularly in the Eastern District of Texas.

• Robin K. Curtis

  • Role: Counsel
  • Firm: Bunsow De Mory LLP
  • Office Location: Contact info for Bunsow De Mory LLP provided by PacerMonitor.
  • Relevant Experience: Part of the legal team from Bunsow De Mory LLP representing Carma Technology.

• Michael E. Flynn-O'Brien

  • Role: Counsel
  • Firm: Bunsow, De Mory Llp-Redwood
  • Office Location: Redwood. (Specific office location for Bunsow, De Mory LLP-Redwood not further detailed in snippets).
  • Relevant Experience: Counsel from Bunsow De Mory LLP.

• Samuel Franklin Baxter

  • Role: Counsel
  • Firm: McKool Smith, P.C. - Marshall
  • Office Location: Marshall, Texas
  • Relevant Experience: Samuel Franklin Baxter is a prominent patent litigator associated with McKool Smith, a firm highly active in patent cases in the Eastern District of Texas.

It is important to note that while Sean O'Sullivan is identified as the sole named inventor of the asserted patents and a notable technologist and entrepreneur, search results indicate that a "Sean O'Sullivan - Attorney at Law" in Greenfield, MA, and "Sean P. O'Sullivan, Esq" of the Law Office of Sean P. O'Sullivan, PLLC in Staten Island, NY, primarily focus on family, real estate, and general practice law, and there is no indication that he is representing the plaintiffs in this patent case.

The filing on January 14, 2025, lists these attorneys as appearing for the plaintiffs.

Here is the counsel of record representing the defendant(s), Uber Technologies Inc., in case 2:25-cv-00029:

• Andrew William Robb

  • Role: Partner
  • Firm: Gibson, Dunn & Crutcher LLP, Palo Alto, CA
  • Experience: Focuses on patent and other technology-based disputes, with experience in the International Trade Commission and federal district court. He has represented a ride-sharing company in multiple patent cases involving location, network infrastructure, and transportation-related technologies.

• Robert A. Vincent

  • Role: Partner
  • Firm: Gibson, Dunn & Crutcher LLP, Dallas, TX
  • Experience: His practice primarily centers on intellectual property litigation across a variety of technologies, including smartphones, user interfaces, semiconductors, and software. He has litigated complex patent infringement cases in numerous jurisdictions, including the Eastern and Northern Districts of Texas.

• Nathan Robert Curtis

  • Role: Of Counsel
  • Firm: Gibson, Dunn & Crutcher LLP, Dallas, TX
  • Experience: Litigates complex intellectual property cases in prominent patent venues such as the Eastern and Western Districts of Texas, the Northern District of California, the District of Delaware, and the International Trade Commission. He also has extensive experience with Patent Trial and Appeal Board (PTAB) proceedings and previously served as a law clerk to Judge Timothy B. Dyk of the United States Court of Appeals for the Federal Circuit.

• Audrey Yang (listed as Yeepay Audrey Yang in initial docket search)

  • Role: Associate
  • Firm: Gibson, Dunn & Crutcher LLP, Dallas, TX
  • Experience: Member of the Intellectual Property and Appellate and Constitutional Law Practice Groups. She previously clerked for Judge Alan D. Lourie of the United States Court of Appeals for the Federal Circuit and has successfully argued motions, including winning a Rule 12(c) motion to invalidate asserted patents in a patent infringement trial in the Western District of Texas.

• Ashbey N Morgan

  • Role: Associate
  • Firm: Gibson, Dunn & Crutcher LLP, Dallas, TX
  • Experience: Focuses on patent litigation across diverse technologies, including pharmaceuticals, medical devices, telecommunications, and software. She previously served as a law clerk to Chief Judge Rodney Gilstrap in the Eastern District of Texas, where she gained substantive experience in all phases of litigation, including Markman hearings and trials.

• Melissa Richards Smith

  • Role: Partner, Local Counsel
  • Firm: Gillam & Smith, LLP, Marshall, TX (also has a Tyler, TX office)
  • Experience: An highly experienced trial lawyer in the Eastern District of Texas, she has tried multiple patent cases to verdict for both plaintiffs and defendants, resulting in non-infringement and invalidity verdicts. She has served as local counsel for visiting lawyers in over three thousand patent cases and is recognized as a leading local counsel for defendants in patent litigation.

• Mark Nolan Reiter

  • Role: Counsel of Record (specific role such as partner or associate not specified in search results)
  • Firm: Gibson, Dunn & Crutcher LLP, Dallas, TX
  • Experience: Specific patent litigation experience is not readily available in the provided search results.