Patent litigation attorney
David Hadden
1 tracked appearance — 0 plaintiff · 1 defendant.
Specialty & background
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Professional Summary — J. David Hadden (Fenwick & West LLP)
Specialty / focus areas. Hadden is a patent litigator concentrated in complex electronics and software technologies rather than life sciences or mechanical arts. Fenwick's own practice description and press coverage place his cases in cloud computing and web services, voice processing/natural language processing and machine learning (notably Amazon's Alexa), streaming and video encoding, cryptography, e-commerce, database/business-intelligence software, wearable tech and medical devices, and software/hardware design. A recurring theme in his docket is Section 101/Alice eligibility litigation, including an early post-Berkheimer case in which invalidity was tried to a jury.
Side preference. He is overwhelmingly a defense-side litigator. The tracked database reflects a single appearance — on the defendant side, as lead counsel, at Fenwick & West — and public rankings are consistent with that: Patexia named him its best-performing patent defense attorney nationally (2021) and repeatedly ranked him among the most active attorneys representing defendants, and Chambers USA describes a defense-oriented tech-client practice. His client base is operating companies (Amazon, Intel, Under Armour, Twitter, Zillow, Groupon, Netflix, Dropbox, Box, HP, Xilinx, Motorola), not NPEs. He is not exclusively a defense lawyer, however — he also obtained a plaintiff-side jury verdict and $25M damages award for Informatica against Business Objects. Note that the single "Untitled case" entry in the tracked list is too thin to support any inference beyond the defense/lead-counsel classification.
Firm context. He has practiced at Fenwick & West (Mountain View, CA) throughout the period covered by available sources; no prior-firm affiliation surfaced in searching, and he should not be confused with other attorneys sharing the surname. He is a partner in the firm's litigation group and is frequently joined by Fenwick colleagues including Saina S. Shamilov and Ravi R. Ranganath.
Notable cases and outcomes. His most prominent work is for Amazon. In Freshub, Inc. v. Amazon.com, Inc., a W.D. Tex. jury returned a full defense verdict in June 2021 on Alexa voice-shopping-list patents where Freshub sought $246M; the Federal Circuit affirmed on February 26, 2024 (93 F.4th 1244), with Hadden arguing for Amazon. In the PersonalWeb multidistrict litigation he won summary judgment of non-infringement for Amazon and 80+ AWS customers on Kessler-preclusion grounds (affirmed, 961 F.3d 1365 (Fed. Cir. 2020); cert. denied May 16, 2022), then secured a § 285 fee award ultimately affirmed at roughly $5.19M (In re PersonalWeb Techs., 85 F.4th 1148 (Fed. Cir. 2023)). Other reported results include a full defense verdict for Amazon against Virginia Innovation Sciences in the E.D. Tex. (with eight patents invalidated on the pleadings in a related E.D. Va. action), an affirmed defense verdict for Zillow/Adchemy against LendingTree, and summary judgments of non-infringement affirmed for Twitter (Cooper Notification) and Groupon, plus a Voxer win with $820K in fees. He has argued numerous Federal Circuit appeals, including the Freshub argument.
PTAB / IPR experience. Yes — he appears regularly in PTAB proceedings on both sides. Examples include IPR2015-00050 (patent-owner counsel for Delphix against Actifio), IPR2015-01689 (lead petitioner counsel for Delphix), IPR2017-01158 (petitioner counsel for Groupon), and later Amazon-related IPRs such as IPR2022-01064 and IPR2023-00384.
Bar / education. Admitted in California (1995) and registered to practice before the USPTO (Reg. No. 40,629); B.S., Yale University (1986); M.A., Princeton University (1987), with graduate work in string theory; J.D., Yale Law School (1994).
Sourcing caution: the tracked case list contains only one (untitled) matter, so the case-specific detail above is drawn from Fenwick's attorney page, Federal Circuit opinions, and PTAB filings rather than the tracked data; the firm bio and award descriptions are self-reported.
Firms
Roles
- lead counsel1
Cases (1)
- Δ defendantUntitled caseFenwick & West · lead counsel