IPR2020-01266

IPR2020-01266: A Procedurally Terminated Challenge to Bright Data's Web Data Collection Patent

This Inter Partes Review (IPR) case, IPR2020-01266, involved a challenge to U.S. Patent No. 10,257,319, owned by Bright Data Ltd. (formerly Luminati Networks Ltd.). The Petitioner was Teso LT, UAB, an entity associated with Oxylabs, a direct competitor of Bright Data in the web data collection and proxy service industry. Both Bright Data and Oxylabs are significant players providing proxy networks and web scraping tools for large-scale public web data extraction.

U.S. Patent No. 10,257,319 broadly covers systems and methods related to residential proxy solutions and web data collection. Specifically, the patent pertains to technology for anonymously accessing a target information server via a network of client devices. This technology is foundational to the operations of companies like Bright Data and Oxylabs, which enable businesses to gather public web data for various purposes, including market research, price intelligence, and AI training.

The IPR was filed at the Patent Trial and Appeal Board (PTAB) and ultimately terminated with a "Not Instituted - Procedural" status. The procedural termination for IPR2020-01266 stemmed from the Supreme Court's refusal to review the Federal Circuit's decision affirming the invalidation of claims from U.S. Patent No. 10,257,319. This effectively rendered the IPR petition moot, as the underlying claims were no longer valid. This IPR was part of a larger, ongoing and contentious patent dispute between Bright Data and Oxylabs, which also included parallel district court litigation in the U.S. District Court for the Eastern District of Texas (e.g., Bright Data Ltd. v. Teso LT, UAB et al., Case No. 2:19-cv-00395-JRG). In this district court case, a jury had initially found that Oxylabs willfully infringed Bright Data's patent rights, including the '319 patent, and that these patents were valid. However, subsequent PTAB challenges and the Federal Circuit's affirmance of invalidation, ultimately undisturbed by the Supreme Court, significantly impacted the district court proceedings and led to the procedural termination of this IPR.

This case is notable due to the high-stakes legal battle between two leading competitors in the rapidly growing web data collection industry. The extensive litigation, including multiple district court lawsuits and IPRs, highlights the aggressive protection of intellectual property in this sector. The ultimate invalidation of key patent claims through PTAB and Federal Circuit review, even after an initial jury verdict of infringement and validity in district court, underscores the significant role of IPRs as a powerful tool for challenging patent validity and demonstrates how PTAB decisions can ultimately dictate the outcome of parallel district court litigation, even reaching the Supreme Court. The dispute also showcases the ongoing tension and competition within the web scraping and proxy service market, where proprietary technologies are central to business models.

Legal Developments and Outcome for IPR2020-01266 and Related Litigation

This summary outlines the key legal developments concerning U.S. Patent No. 10,257,319, which was the subject of IPR2020-01266, and its associated patent infringement litigation.

Parallel PTAB IPR Proceedings and Denial of IPR2020-01266

• IPR2020-01266 Filed: A petition for Inter Partes Review (IPR2020-01266) was filed challenging certain claims of U.S. Patent No. 10,257,319.
• IPR2020-01266 Denied Institution: The Patent Trial and Appeal Board (PTAB) denied institution of IPR2020-01266 on discretionary grounds. This denial was based on factors articulated in General Plastic Industrial Co. v. Canon Kabushiki Kaisha, IPR2016-01357, Paper 19, and noted significant overlap with other IPRs (IPR2020-01109 and IPR2020-01110) that were also denied. The '319 patent was also subject to an Ex Parte Reexamination, Control No. 90/014,875, which was stayed.

Patent Infringement Litigation: Bright Data Ltd. v. Teso LT, UAB et al.

The patent at issue, U.S. Patent No. 10,257,319, was asserted in a patent infringement lawsuit filed by Luminati Networks Ltd. (later renamed Bright Data Ltd.) against Teso LT, UAB, Oxysales, UAB, and Metacluster LT, UAB (collectively, Oxylabs).

• Filing & Initial Pleadings (2019):

  • Complaint Filed: On December 6, 2019, Luminati Networks Ltd. (now Bright Data Ltd.) filed a patent infringement lawsuit, Case No. 2:19-CV-00395-JRG, in the U.S. District Court for the Eastern District of Texas against Oxylabs. Luminati asserted infringement of U.S. Patent Nos. 10,469,614, 10,257,319, and 10,484,510, among others. The '319 patent had issued on November 5, 2019, shortly before the complaint was filed.
  • Antitrust Counterclaims: Oxylabs filed antitrust counterclaims against Luminati/Bright Data, alleging monopolization and the filing of sham patent-infringement lawsuits.

• Pre-trial Motions of Substance (2020-2021):

  • Motion to Stay Pending IPR: Motions to stay pending IPR were generally denied in this district, especially before IPR institution decisions.
  • Motion for Judgment on the Pleadings: Oxylabs filed a Motion for Judgment on the Pleadings under Fed. R. Civ. P. 12(c) and 35 U.S.C. § 101 (challenging patent eligibility). The Court denied this motion on February 16, 2021, noting that "claim construction could be of benefit in addressing this issue."

• Claim Construction (Markman) (2020):

  • A scheduling conference on May 18, 2020, set Markman and jury selection dates.
  • Magistrate Judge Payne entered a Claim Construction Opinion and Order on December 7, 2020.

• Trial Events & Verdict (2021):

  • A jury trial took place, and a Jury Verdict Form was filed on November 5, 2021. The form indicated that the jury considered whether Oxylabs proved by clear and convincing evidence that any of the asserted claims (including Claims 1 and 26 of the '319 Patent) were invalid.

• Post-Trial Motions and Stay (2021):

  • Following the jury trial, Case No. 2:19-cv-00395-JRG was stayed pending the final outcome of related patent invalidation proceedings before the USPTO.

• Final Disposition and Appeals (2025-2026):

  • Federal Circuit Affirmation of Invalidation (2025): On August 1, 2025, the U.S. Court of Appeals for the Federal Circuit affirmed earlier decisions by the U.S. Patent and Trademark Office (USPTO) that invalidated claims from U.S. Patent No. 10,257,319, along with U.S. Patent Nos. 10,484,510 and 10,069,936. These patents, central to Bright Data's allegations, were invalidated based on obviousness and appearance in prior art. The Federal Circuit found no reversible error in the underlying invalidity determination, rendering the patents unenforceable.
  • Supreme Court Certiorari Denied (2026): On January 5, 2026, Bright Data Ltd. filed a Petition for a Writ of Certiorari with the U.S. Supreme Court, seeking review of the Federal Circuit's decision. However, on February 23, 2026, the U.S. Supreme Court rejected Bright Data's petition, conclusively confirming the invalidity of the '319 and '510 patents. This decision is expected to lead to the dismissal of Case No. 395 with prejudice, as the asserted patents forming the basis of the infringement claims have been invalidated.

The IPR2020-01266 case was initiated by Teso LT, UAB (associated with Oxylabs) challenging a patent owned by Bright Data Ltd. While specific counsel of record for the IPR itself are not readily available through general public searches, information from related district court litigation involving the same parties and patent provides insight into the legal teams involved.

For the plaintiff/petitioner in the broader dispute, Teso LT, UAB (Oxylabs), the following attorneys and firms have been identified in the parallel district court case Bright Data Ltd. v. Teso LT, UAB et al., Case No. 2:19-cv-00395-JRG, and other related dockets:

• Steven Chase Callahan (Lead Counsel)

  • Firm: Charhon, Callahan, Robson & Garza PLLC (likely Dallas, TX based on common firm offices in patent litigation).
  • Note: Appears as counsel for Teso LT, UAB in the district court litigation.

• Craig N. Tolliver

  • Firm: Charhon, Callahan, Robson & Garza PLLC
  • Note: Also appears as counsel for Teso LT, UAB in the district court case.

• George T. Scott

  • Firm: Charhon, Callahan, Robson & Garza PLLC
  • Note: Appears as counsel for Teso LT, UAB in the district court litigation.

• John Charles Heuton

  • Firm: Charhon, Callahan, Robson & Garza PLLC
  • Note: Appears as counsel for Teso LT, UAB in the district court litigation.

• Mitchell Reed Sibley

  • Firm: Charhon, Callahan, Robson & Garza PLLC
  • Note: Appears as counsel for Teso LT, UAB in the district court litigation.

• Brett Christopher Govett

  • Firm: Norton Rose Fulbright US LLP (Dallas, TX office mentioned in a related docket).
  • Note: Filed an unopposed motion to withdraw as attorney from a related case on March 10, 2023.

• Daniel S. Leventhal

  • Firm: Norton Rose Fulbright US LLP (Houston, TX office mentioned in a related docket).
  • Note: Also filed an unopposed motion to withdraw as attorney from a related case on March 10, 2023.

• Warren Szutse Huang

  • Firm: Norton Rose Fulbright US LLP (Houston, TX office mentioned in a related docket).
  • Note: Appears as counsel for Teso LT, UAB in the district court litigation.

• Michael Charles Smith

  • Firm: Scheef & Stone, LLP (Marshall, TX office mentioned in a related docket).
  • Note: Appears as counsel for Teso LT, UAB in the district court litigation.

• Justinas Jarusevicius

  • Firm: Motieka & Audzevicius (likely a Lithuanian firm, given Teso LT, UAB's origin).
  • Note: Appears as counsel for Teso LT, UAB in the district court litigation.

It's important to note that Oxylabs (Teso LT, UAB) also employs in-house intellectual property counsel to manage their IP strategy, coordinate filings, and guide outside counsel. Marija is the Head of the IP team at Oxylabs.io, advising on IP strategy, supervising IPR registration and disputes, and managing external counsel. Liūnė Storoženkaitė, an IP Lawyer and qualified Lithuanian Patent Attorney, also holds an Advisor position at the State Patent Bureau of the Republic of Lithuania and has over 10 years of experience in IP. While these individuals are integral to Oxylabs' overall IP strategy, the listed attorneys from specific law firms are those who appeared as counsel in the related U.S. litigation.

The IPR2020-01266 case itself was "Not Instituted - Procedural," meaning there was no full review of the patent claims and therefore no need for active representation of the Petitioner (Teso LT, UAB) in that specific IPR proceeding beyond the initial filing and any subsequent procedural arguments. However, the existing case summary notes that this IPR was part of a larger dispute, specifically referencing Bright Data Ltd. v. Teso LT, UAB et al., Case No. 2:19-cv-00395-JRG, in the U.S. District Court for the Eastern District of Texas. To identify the counsel of record for the defendant(s) (Teso LT, UAB, Metacluster LT, UAB, and Oxysales, UAB, collectively referred to as "Oxylabs" in some documents) in this broader patent infringement context, information from the district court case is relevant.

Based on available information from the related district court case, the following attorneys represented the defendants (Teso LT, UAB, Metacluster LT, UAB, and Oxysales, UAB):

Charhon, Callahan, Robson & Garza, PLLC (Dallas, Texas)

• Steven Chase Callahan: Lead Counsel. (Texas State Bar No. 24053122).
• Craig N. Tolliver: Counsel. (Texas State Bar No. 24028049).
• George T. Scott: Counsel. (Texas State Bar No. 24061276).
• Mitchell Reed Sibley: Counsel. (Texas State Bar No. 24073097).
• John Charles Heuton: Admitted Pro Hac Vice.

Norton Rose Fulbright US LLP (Dallas, Texas & Houston, Texas)

• Brett Christopher Govett: Counsel. (Dallas, TX).
• Daniel S. Leventhal: Counsel. (Houston, TX).
• Warren Szutse Huang: Counsel. (Houston, TX).

Scheef & Stone, LLP (Marshall, Texas)

• Michael Charles Smith: Local Counsel.

Motieka & Audzevicius

• Justinas Jarusevicius: Counsel.

It is important to note that the IPR was procedurally terminated, which would generally limit the direct involvement of counsel in the IPR itself to the initial petition and any related procedural filings. However, the listed attorneys were actively involved in the parallel district court litigation concerning the same patent.