Eric B. Hall

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Eric B. Hall — Patent Litigation Practice Summary

Specialty / focus. Dr. Hall is a Houston-based patent litigator whose practice centers on telecommunications, networking, and wireless technology, with additional disclosed experience in software, media, and industrial technology. His firm biography emphasizes 30-plus years of telecommunications experience and lists engagements spanning mobile device chipsets, LCD display manufacturing, fiber-based communications, and televisions, alongside prosecution work in areas such as ground-penetrating sensors, imaging software, time-of-flight mass spectrometers, and RFID. His tracked case list is dominated by cybersecurity/network-security patents — specifically the Centripetal Networks "correlation" and rule-based threat-detection families asserted against next-generation firewall products. USPTO filing data also shows prosecution activity for University of Texas System, 10x Genomics, and Janssen Biotech, though that appears secondary to the litigation practice.

Side preference. He works almost exclusively for defendants in the tracked matters (0 plaintiff-side vs. 7 defendant-side appearances). The client profile is operating companies accused of infringement — Palo Alto Networks most prominently, plus Huntington Bancshares in the Intellectual Ventures II campaign — rather than NPE/PAE plaintiffs. His firm biography nonetheless describes prior representations of patent-owning telecommunications and wireless companies in enforcement actions, including a jury verdict in favor of a client asserting switch/router patents, so his historical practice is broader than the tracked docket suggests.

Firm context. Hall has been a partner in the Houston office of Fulbright & Jaworski since 1999; that firm combined into Norton Rose Fulbright, and he appears in the tracked cases under both "Norton Rose Fulbright US" and "Norton Rose Fulbright." He is not an in-house attorney.

Notable matters and outcomes. The flagship matter is Centripetal Networks, LLC v. Palo Alto Networks, Inc. (E.D. Va. No. 2:21-cv-00137), where Hall served on the Palo Alto Networks trial team. The January 31, 2024 jury verdict went against his client at $151.5 million on four patents; post-trial JMOL on October 3, 2024 eliminated the '437 patent and reduced the award to $113.625 million, with the court rejecting Palo Alto's § 101, infringement, and damages challenges as to the '903, '573, and '797 patents. He also appears as lead defense counsel in the parallel Palo Alto Networks, Inc. v. Centripetal Networks, Inc. proceedings. The tracked Federal Circuit appeal No. 2024-2373 (Centripetal Networks v. Keysight Technologies / Palo Alto Networks, appeals from PTAB Nos. IPR2023-00445 and IPR2023-01329) was affirmed without opinion by Rule 36 judgment on June 9, 2026. His firm biography reports additional defense wins, including an ITC Section 337 determination of no violation for a mobile chip provider (affirmed after the Commission declined review, with the complainant dismissing both its Federal Circuit appeal and parallel district court action) and a summary judgment of non-infringement for an LCD display manufacturer in the Eastern District of Texas.

PTAB / IPR experience. He appears regularly in post-grant proceedings, including a large coordinated set of Palo Alto Networks IPRs against Centripetal patents (e.g., IPR2021-01147 through IPR2021-01158; IPR2022-00182) and an ex parte reexamination of U.S. Patent No. 10,931,797. Related appeals have produced published Federal Circuit activity — including Centripetal Networks, LLC v. Palo Alto Networks, Inc., No. 23-2027 (Fed. Cir. Oct. 22, 2025) (recusal challenge rejected; obviousness decision vacated for failure to consider copying evidence) and Palo Alto Networks, Inc. v. Centripetal Networks, LLC, No. 23-1636 (Fed. Cir. Dec. 16, 2024) (vacated for inadequate motivation-to-combine analysis). Note that the Federal Circuit briefing in those appeals was handled by other firms; Hall's tracked role is at the trial/PTAB level.

Bar and education. Rice University, B.S. 1985; University of Texas at Austin, M.S. 1986 and Ph.D. 1989; University of Texas School of Law, J.D. 1999. Admitted in Texas (1999) and registered to practice before the USPTO (Reg. No. 46,751). He has also held academic positions as an assistant professor in SMU's Electrical Engineering Department and as a faculty fellow at the Johnson Space Center, and has authored a probability theory book published by Oxford University Press.

Sourcing note: the case-specific facts above are drawn from the tracked docket entries, court filings, and Federal Circuit/PTAB records; practice-area and background details come from his Norton Rose Fulbright biography and standard directory profiles (Martindale, Best Lawyers, Super Lawyers, IAM Patent 1000), with the usual caveat that directory listings are not independently verified.