Litigation

Untitled case

active

6:21-cv-01078

Patents at issue (1)

Summary

This litigation is active in the Texas Western District Court.

Case overview & background

Plain-language overview of the case: parties, accused product, patents at issue, and why the suit matters.

Charge Fusion Technologies LLC, a patent assertion entity (PAE) specializing in electric vehicle (EV) charging technology, is engaged in ongoing patent infringement litigation against Tesla, Inc., a prominent manufacturer of electric vehicles and charging systems. The litigation, primarily active under case number 1:22-cv-00488 in the U.S. District Court for the Western District of Texas, alleges that Tesla's electric vehicles, including models such as the Model 3, Model S, Model X, Model Y, and Roadster, and their associated electrical charging systems, infringe Charge Fusion's patents. While the original case, 6:21-cv-01078, was terminated, the underlying dispute regarding the same patents and parties has continued in the refiled action.

The core patent at issue, US Patent No. 10,998,753, titled "Systems and Methods for Charging Electric Vehicles," broadly covers intelligent control over the timing of the EV charging process. This includes defining a charging schedule based on user preferences and dynamic factors of the electric charge provider, often involving a graphical user interface (GUI) for input and display. Charge Fusion has also asserted, and sought leave to assert, additional related patents from the same family against Tesla, such as US Patent Nos. 9,853,488, 10,819,135, 11,575,275, 11,563,338, 11,990,788, and 11,631,987, all generally directed to EV charging systems.

This litigation is proceeding in the Western District of Texas, a popular venue for patent cases, particularly the Waco Division which has been presided over by Judge Alan D. Albright. The Western District of Texas is known for its expedited trial schedules, which often influences plaintiff venue choices in patent disputes. The case is particularly notable due to the extensive parallel inter partes review (IPR) proceedings initiated by Tesla against Charge Fusion's asserted patents before the Patent Trial and Appeal Board (PTAB). Significantly, Tesla recently appealed a PTAB decision regarding the '753 patent, which found claims 1-10 not unpatentable, and the U.S. Court of Appeals for the Federal Circuit affirmed the PTAB's decision in February 2026, upholding the validity of the patent's claims related to the "Charging Control Limitation." This Federal Circuit affirmation represents a significant win for Charge Fusion in its broader enforcement campaign against major electric vehicle manufacturers.

Key legal developments & outcome

Major rulings, motions, claim construction, settlements, and the present posture or final disposition.

omol_thought
I have identified the defendant as Tesla Inc. and the patent at issue as 10998753. I have also found details about the parallel IPR proceedings (IPR2022-01217) and the Federal Circuit appeal, including the Federal Circuit's affirmance on February 25, 2026, and the PTAB's Final Written Decision for IPR2022-01217 on January 17, 2024.

The initial search results provided a conflicting case number (1:22-cv-00488) and filing date (October 15, 2021) in one snippet, while others consistently refer to 6:21-cv-01078, with a filing date around October 21, 2021. I need to clarify the correct filing date for case 6:21-cv-01078. The earlier result showing "6:21-cv-01078, Filed, Charge Fusion Technologies, LLC, Tesla, Inc. 10998753 · 9853488 · 10819135" [cite: 2 in previous turn] is more consistent with the case number given in the prompt. I will assume 6:21-cv-01078 is the primary case and try to get the exact filing date.

I also need to find:

  • The exact filing date of the complaint in the district court (6:21-cv-01078).
  • The date of Tesla's answer and any counterclaims.
  • The outcome and date of Tesla's "Defendant Motion to Dismiss" (mentioned as dated Jan 7, 2022 [cite: 3 in previous turn]).
  • The specific Markman order date, if available, or confirmation that it occurred.
  • The reason and date for the "Terminated" status of the district court case (mentioned as [cite: 1 in previous turn]). This is crucial for the final disposition.

Let's refine the searches to specifically target these missing district court details.## Charge Fusion Technologies LLC v. Tesla Inc. - Key Legal Developments and Outcome

Case Number: 6:21-cv-01078
Court: U.S. District Court for the Western District of Texas
Plaintiff: Charge Fusion Technologies LLC
Defendant: Tesla Inc.
Patents at Issue: U.S. Patent No. 10,998,753 (and initially 9,853,488 and 10,819,135)

This patent infringement litigation, filed by Charge Fusion Technologies LLC against Tesla Inc. in the Western District of Texas, primarily involved U.S. Patent No. 10,998,753, related to systems and methods for charging electric vehicles. The case saw significant activity both in the district court and in parallel inter partes review (IPR) proceedings at the Patent Trial and Appeal Board (PTAB), culminating in a Federal Circuit affirmance of the patent's validity.

Key Legal Developments:

  • Filing & Initial Pleadings:

    • 2021-10-21: Charge Fusion Technologies, LLC filed a complaint against Tesla, Inc., alleging infringement of U.S. Patent Nos. 10,998,753, 9,853,488, and 10,819,135. [cite: 2 in previous turn]
  • Pre-Trial Motions of Substance:

    • 2022-01-07: Tesla filed a Motion to Dismiss. [cite: 3 in previous turn] The outcome of this specific motion is not explicitly detailed in the provided search results, but subsequent events suggest the case continued, implying it was likely denied or withdrawn.
  • Claim Construction (Markman):

    • 2022-04-29: Tesla Inc. disclosed its Preliminary Proposed Claim Term Constructions for the patents, indicating that the case progressed to the claim construction stage. [cite: 3 in previous turn] No specific Markman order date was found, but the disclosure indicates this process was underway.
  • Parallel PTAB IPR Proceedings:

    • 2022: Tesla challenged the asserted patent claims via inter partes review (IPR) at the Patent Trial and Appeal Board (PTAB). [cite: 3 in previous turn]
    • IPR2022-01217: This IPR specifically challenged U.S. Patent No. 10,998,753. [cite: 4, 5 in previous turn] The PTAB instituted the review. [cite: 3 in previous turn]
    • IPR2023-00062: Tesla also challenged U.S. Patent No. 9,853,488 in this IPR. The PTAB determined the challenged claims in this patent to be unpatentable on April 16, 2024. [cite: 5 in previous turn]
    • IPR2023-00063: Tesla challenged U.S. Patent No. 10,819,135 in this IPR. The PTAB determined that no challenged claims in this patent were unpatentable on May 2, 2024. [cite: 5 in previous turn] Tesla filed a notice of appeal for this IPR on June 25, 2024. [cite: 5 in previous turn]
  • PTAB Final Written Decision (for 10,998,753):

    • 2024-01-17: The PTAB issued a Final Written Decision in IPR2022-01217, holding that Tesla failed to prove claims 1 to 10 of U.S. Patent No. 10,998,753 unpatentable. [cite: 3, 4, 5 in previous turn]
  • Federal Circuit Appeal (for 10,998,753):

    • 2024-03-19: Tesla filed a notice of appeal for IPR2022-01217 to the U.S. Court of Appeals for the Federal Circuit (CAFC). [cite: 5 in previous turn]
    • 2026-02-25: The Federal Circuit affirmed the PTAB's decision regarding U.S. Patent No. 10,998,753. The court upheld the PTAB's finding that Tesla did not present sufficient evidence to demonstrate that the prior art reference "Kato" taught the "Charging Control Limitation" of the patent. This decision was nonprecedential. [cite: 1, 2, 3, 4 in previous turn] The Federal Circuit's analysis hinged on the distinction between human action and an automated computer command in the patent's "Charging Control Limitation," with the court finding the patent required an automated process. [cite: 2, 4 in previous turn]
  • Final Disposition of District Court Litigation:

    • The district court case 6:21-cv-01078 is noted as "Terminated." [cite: 1 in previous turn] While the exact date and reason for termination in the district court are not explicitly detailed, it is common for patent infringement cases to be dismissed or settled following the resolution of parallel IPR proceedings, especially once key patentability issues have been decided at the PTAB and affirmed on appeal. Given the Federal Circuit's affirmance of the validity of the key patent (10,998,753) on February 25, 2026, it is highly probable the district court case was subsequently dismissed or settled. Tesla was also appealing PTAB decisions for other patents in the litigation (e.g., 10,819,135), with a split decision from the Federal Circuit on March 31, 2026, finding some claims of that patent obvious, while affirming others. [cite: 6 in previous turn] This complex outcome across multiple patents likely influenced a comprehensive resolution of the district court case.

Outcome:

In the parallel IPR proceedings, Tesla successfully invalidated claims of one patent (9,853,488) but failed to invalidate claims of U.S. Patent No. 10,998,753 and U.S. Patent No. 10,819,135. The Federal Circuit affirmed the validity of U.S. Patent No. 10,998,753 on February 25, 2026. While the district court case is marked as terminated, the specific details of its final disposition (e.g., settlement, voluntary dismissal) are not publicly detailed, but it likely concluded in light of the PTAB and Federal Circuit decisions.

Plaintiff representatives

Counsel of record for the plaintiff(s): attorneys, firms, and roles (lead counsel, of counsel, local counsel).

Counsel of Record for Plaintiff Charge Fusion Technologies LLC

The following attorneys are identified as counsel of record representing Charge Fusion Technologies LLC in case 6:21-cv-01078 in the Texas Western District Court, or in related proceedings concerning the patent at issue:

  • Frederick A. Tecce - Lead Counsel

    • Firm: Altima Advisors/Attorneys, LLC, Philadelphia, Pennsylvania.
    • Experience: A former federal prosecutor and registered patent attorney, he has dedicated decades to representing intellectual property owners and has obtained substantial verdicts and settlements in patent litigation. He also argued for Charge Fusion Technologies, LLC in a Federal Circuit appeal concerning the patent at issue.
  • Bradley D. Liddle - Lead Counsel

    • Firm: Cozen O'Connor, Dallas, Texas. (Previously a partner at Carter Arnett PLLC).
    • Experience: Has extensive experience representing and advising clients in patent litigation matters, including Inter-Partes Review proceedings, and has advised on patent licensing and portfolio acquisitions. He was identified as lead counsel for Charge Fusion Technologies, LLC in a PTAB proceeding related to the patent at issue and also represented them at the Federal Circuit.
  • Scott W. Breedlove - Counsel

    • Firm: Carter Arnett PLLC, Dallas, Texas.
    • Experience: A registered patent attorney with an electrical engineering background, he is a trial lawyer who has represented clients in patent litigation across various technologies, including securing a $9.2 million jury verdict in a patent infringement trial in the Western District of Texas.
  • Theresa M. Dawson - Senior Counsel

    • Firm: Carter Arnett PLLC, Dallas, Texas.
    • Experience: Focuses on high-stakes intellectual property and complex commercial litigation, with experience representing clients in federal courts and the ITC in disputes across a range of technologies, including appeals before the Fifth and Federal Circuits. She moved for pro hac vice admission in a PTAB proceeding for Charge Fusion Technologies, LLC.

Defendant representatives

Counsel of record for the defendant(s): attorneys, firms, and roles (lead counsel, of counsel, local counsel).

The defendant in this patent infringement case, 6:21-cv-01078, is Tesla, Inc.. Although some search results indicate that case 6:21-cv-01078 was terminated in May 2022, the provided case metadata states the case is "active." Proceeding with the assumption that the case is active, the following counsel are identified as representing Tesla, Inc. in patent litigation, including related matters concerning the patent at issue:

  • Paul Isaac Margulies

    • Role: In-house Counsel (argued for Tesla in a Federal Circuit appeal related to the '753 patent)
    • Firm: Tesla, Inc., Washington, D.C.
    • Experience Note: Patent attorney with experience in mechanical engineering, manufacturing, transportation, e-commerce, semiconductors, and optics, with a focus on patent litigation and appeals, including PTAB and Federal Circuit cases.
  • Krista Marie Carter

    • Role: In-house Counsel
    • Firm: Tesla, Inc., Palo Alto, CA
    • Experience Note: Appeared on behalf of Tesla in a Federal Circuit appeal related to the '753 patent.
  • David A. Caine

    • Role: Outside Counsel, Partner
    • Firm: Arnold & Porter Kaye Scholer LLP, Palo Alto, CA
    • Experience Note: Represents clients in patent, trade secret, and general commercial matters in federal and state courts, arbitration, mediation, and before the U.S. Patent Office and the International Trade Commission. Has served as lead counsel in ITC, district court, and Patent Office proceedings, with experience across industries including semiconductor, computer hardware and software, memory and logic circuits, and telecommunications.

While direct docket entries for these attorneys in case 6:21-cv-01078 were not explicitly found in public search results, their representation of Tesla in closely related patent litigation concerning U.S. Patent No. 10,998,753 (the patent at issue in this case) and other Western District of Texas patent cases makes their involvement highly probable if the case is indeed active. Tesla is also known to utilize firms like Fish & Richardson for patent litigation.