Peter Henrik Pedersen v. Unified Patents, LLC

I'll research this case thoroughly, starting with the patent, the IPR, and the Federal Circuit appeal.

I have strong sources already. Let me dig deeper into the IPR timeline, the WDTX litigation campaign, and Pedersen's NPE profile.

Case Overview: Pedersen v. Unified Patents, LLC (Fed. Cir. No. 2024-2090)

Parties and their roles. Appellant Peter Henrik Pedersen is an individual inventor — the sole named inventor of U.S. Patent No. 6,965,920 ("Profile Responsive Electronic Message Management System") — who, beginning in November 2021, ran a single-patent assertion campaign in the Western District of Texas against more than a dozen software and SaaS companies, including Google/Alphabet, Microsoft, Verizon (Yahoo), Ziff Davis, Mailgun, Oracle, Salesforce, Zoho, Adobe, Intuit, Wix, Zendesk, Blackbaud, Constant Contact, Monday.com, Aurea Software, Upland, Madwire, and SAP (RPX tracks this as an "individual inventor" campaign; Unified Patents identifies Pedersen as "believed to be associated with AiPi Solutions," a characterization that should be treated as the challenger's own description). Appellee Unified Patents, LLC is not an accused infringer; it is a member-funded defensive patent organization ("patent adversary"/anti-troll entity) that finances inter partes review (IPR) challenges to neutralize patents asserted against its member companies, which include many of the firms Pedersen sued. The accused technology in the underlying district-court suits was email-marketing and webmail infrastructure — e.g., Zoho's email-marketing software, Oracle's Responsys platform, Salesforce's marketing cloud, Mailgun's bulk-email products, Google/Microsoft webmail, and Yahoo/AOL Mail filtering features — all accused of infringing the '920 patent's claims to centrally filtering and distributing electronic messages from multiple "messengers" to recipients based on recipient-specified profiles dictating "where, when and how specific types of messages from specific messengers are delivered to the recipient" (claim 1, limitation 1.4; CAFC slip op. at 2–3).

Procedural posture. The captioned case is not itself an infringement suit — it is Pedersen's direct appeal from the PTAB's Final Written Decision in IPR2023-00029, with jurisdiction under 28 U.S.C. § 1295(a)(4)(A). Unified filed its IPR petition on October 14, 2022; the PTAB instituted review on May 15, 2023, and on May 10, 2024 issued a Final Written Decision holding claims 1 and 14–17 unpatentable as obvious over Funk (U.S. Patent 5,937,162) in view of either Law (U.S. Patent 7,058,586) or Kamakura (U.S. Patent 6,047,310). Pedersen appealed (docketed July 16, 2024, Justia docket entry 1), and a nonprecedential panel — Circuit Judges Lourie and Hughes and Chief District Judge Kleeh (N.D.W. Va., sitting by designation) — heard argument on February 6, 2026 and affirmed on March 26, 2026 under substantial-evidence review, holding that the Board's placement of limitation 1.4's messenger-specific, recipient-specified delivery parameters in Funk was supported by the reference's customer-configuration disclosures, petitioner expert testimony (Dr. Henry H. Houh), and Funk's third-party-sender examples (e.g., "JOHN, PLEASE CALL ME. — DAVE S."). Pedersen was represented by Robert Greenspoon and colleagues of Dunlap Bennett & Ludwig PLLC; Unified argued in-house through Kelly Rose Hughes, Roshan Mansinghani, and Alyssa J. Holtslander, with Haynes and Boone (Jon Bowser, Angela Oliver, Michael McCarty) handling the PTAB stage. Venue matters because the underlying campaign was filed almost entirely in the W.D. Tex. Waco Division before Judge Alan D. Albright — a historically patentee-friendly forum — with several cases later transferred to the Austin Division; the Federal Circuit appeal, by contrast, sits where PTAB appeals are statutorily channeled.

Why the case is notable. The affirmance is a clean illustration of the modern IPR countermeasure to high-volume patent assertions: a member-funded challenger used an IPR to invalidate the exact claims (1 and 14–17) driving a 15+-defendant W.D. Tex. campaign, and the Federal Circuit validated that strategy, extinguishing Pedersen's ability to enforce the patent's asserted claims and de-risking email-marketing/webmail vendors. Substantively, the court confirmed that a PTAB obviousness finding can rest on substantial evidence combining the plain language of a reference with expert testimony — even where the patent owner argues the reference's parameters are organized by content type rather than per-messenger (Patterson Sheridan's weekly summary; IP Law Daily, Mar. 26, 2026). The decision is nonprecedential, so its doctrinal footprint is limited, but it reinforces the PTAB as the primary lever for neutralizing legacy software-patent assertions, and it caps a campaign in which Pedersen had already begun settling (e.g., a joint stipulated dismissal with Mailgun citing a settlement agreement). One caveat: the "AiPi Solutions" affiliation and the statuses of individual district-court cases come from Unified's own portal and secondary docket sources, so those specifics should be verified against PACER before being relied on.

Case Analysis: Pedersen v. Unified Patents, LLC, No. 2024-2090 (Fed. Cir.)

Threshold clarification — case posture

A threshold point matters for accuracy: No. 2024-2090 is not a district court patent infringement action. It is a Federal Circuit appeal of a PTAB inter partes review — Pedersen (patent owner) appealing the Final Written Decision in IPR2023-00029. The "defendant" below was the IPR petitioner, Unified Patents, LLC (a defensive patent-challenge entity), not an accused infringer. There were, however, a large parallel set of W.D. Tex. infringement suits filed by Pedersen against tech companies on the same patent (U.S. Patent No. 6,965,920), which the IPR was plainly designed to neutralize. Both threads are covered below.

Patent: U.S. Patent No. 6,965,920, "Profile Responsive Electronic Message Management System," issued 2005-11-15 from App. No. 09/904,270 (filed 2001-07-12, claiming priority to a 2000-07-12 provisional). Claims at issue: 1 and 14-17.

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1. Filing & initial pleadings (the IPR petition and the infringement wave)

• 2021-12-15 – 2022-09-09: Pedersen filed a wave of infringement suits in the W.D. Tex. (Waco Division, Judge Albright) asserting the '920 patent against ~17 companies, including Yahoo (6:21-cv-01308), Adobe, Intuit, Oracle, Zoho, Salesforce, Aurea Software, Madwire, Ziff Davis, Upland, Blackbaud, Constant Contact, Monday.com, Wix, and Zendesk (e.g., 6:22-cv-00927 against Zendesk, filed 2022-09-09). A declaratory-judgment action involving SAP (3:22-cv-01534, N.D. Tex.) closed separately. (Unified Patents litigation case list; Stanford NPE Litigation Database; Unicourt docket for 6:22-cv-00927.)
• 2022-10-14: Unified Patents filed the petition for IPR of the '920 patent — IPR2023-00029 — challenging claims 1 and 14-17 on two obviousness grounds, supported by the Declaration of Dr. Henry H. Houh (EX1003). Ground 1: Funk (U.S. 5,937,162) + Law (U.S. 7,058,586); Ground 2: Funk + Kamakura (U.S. 6,047,310). (Patexia; Docket Alarm; PTACTS hearing exhibit.)
• 2023-02-17: Pedersen filed his Patent Owner Preliminary Response, arguing Unified failed to show a reasonable likelihood of unpatentability. (Docket Alarm, POPR.)
• 2023-05-15: PTAB (APJs White, Wormmeester, Hume) instituted trial on all challenged claims (1, 14-17). (Patexia; GreyB/IPverse.)
• 2023-08-09: Pedersen filed his Patent Owner Response (with declaration of Warner Scheyer, EX2001-2002), contesting the Funk-based grounds, chiefly on whether Funk discloses "messenger-specific" recipient delivery parameters (limitation 1.4). (Docket Alarm.)

2. Pre-trial motions of substance — the parallel district court dockets

Because the named Federal Circuit case is an IPR appeal, the substantive motion practice of note occurred in the related W.D. Tex. infringement cases, driven by the pendency of IPR2023-00029:

• Motions to dismiss: In Pedersen v. Zoho Corp. (1:23-cv-00071, W.D. Tex., transferred from Waco to Austin), Zoho moved under Rule 12(b)(6) arguing the complaint failed to plausibly allege direct infringement of the '920 patent (the "recipient specified by a messenger" language). Judge Pitman denied the motion, holding claim interpretation disputes were premature at the pleading stage and Pedersen's allegations were sufficient. (Studicata summary.)
• Stays pending IPR: The Waco defendants largely moved to stay pending IPR2023-00029:
  • Pedersen v. Monday.com (6:22-cv-00923): Monday.com answered 2022-12-19, moved to stay 2023-06-21; the court granted the opposed motion to stay (order issued after the 2024-01-30 initial pretrial conferences described in the order). (Monday.com stay order, W.D. Tex., ECF No. 11 et seq.)
  • The stay order recites that Intuit (6:22-cv-00588) and Ziff Davis (6:22-cv-00597) had their stays granted, and Upland (6:22-cv-00594) was voluntarily dismissed on 2024-01-30, the day of its initial pretrial conference.
  • Pedersen v. Wix (6:22-cv-00925) was dismissed 2023-08-23. (IPR2023-00867 updated mandatory notices.)
  • Pedersen v. Zendesk (6:22-cv-00927) was flagged STAYED in the W.D. Tex. docket (Docket Alarm case flags).
  • Pedersen v. Oracle (1:23-cv-01020, transferred from 6:22-cv-00410) was dismissed with prejudice as part of a settlement (see § 7 below).
• Net effect: the infringement campaign was largely frozen (stayed or dismissed) while the Unified IPR ran its course.

3. Claim construction (Markman)

No district-court Markman ruling issued in the stayed cases. In the IPR, construction proceeded under the Phillips standard (37 C.F.R. § 42.100(b)); the Patent Owner Response contained a claim-construction section, but the dispute centered on application of the claim language to Funk. The operative construction battleground on appeal was limitation 1.4 — "delivery parameters specified by a recipient of where, when and how specific types of messages from specific messengers are delivered to the recipient" — and whether Funk's profiles were "messenger-specific." The Federal Circuit resolved this as a substantial-evidence question, not a formal construction dispute. (Fed. Cir. opinion; CAFC oral-argument transcript.)

4. Discovery milestones of strategic significance

IPR discovery was expert-driven rather than party-discovery-driven:

• Unified's expert: Dr. Henry H. Houh declaration (EX1003, filed with the petition) mapping each claim limitation to Funk/Law/Kamakura, including the "combined system" theory combining Funk Figures 2 and 7.
• Pedersen's expert: Warner Scheyer declaration (EX2001, filed 2023-08-09 with the Patent Owner Response).
• The PTAB oral hearing (before APJ White) featured hotly contested expert-level disputes: whether Funk has "multiple senders," whether information sources are "messengers," and whether the Funk–Law/Kamakura combinations were motivated. Unified argued Pedersen's entire "single sender" premise was wrong; Pedersen's counsel pressed that Funk's Figure 8 sections (808/810/812) organize parameters by content type, not by messenger (CAFC oral argument, 2026-02-06, at ~2:00-8:00).
• On appeal, Pedersen's briefs cited the record at J.A. 350, 423-24, and 427 (surreply) on the missing messenger-specific profiling.

5. Trial events, verdict, and post-trial motions

There was no jury trial. The "trial" equivalent was the PTAB hearing and Final Written Decision:

• 2024-05-10: The Board (APJ Stacey G. White, writing) issued its Final Written Decision, holding claims 1 and 14-17 unpatentable as obvious under both grounds — Funk in view of Law, and Funk in view of Kamakura — locating limitation 1.4 in Funk (J.A. 31-36, 45; FWD at J.A. 51). (Patexia; GreyB; Unified Patents press release of 2024-05-13.)
• No rehearing request at the Board is reflected in the records reviewed; Pedersen went straight to appeal.

6. Appeal and final disposition — Federal Circuit No. 2024-2090

• 2024-07-12/16: Notice of appeal received; appeal docketed 2024-07-16 (Justia CAFC docket, entry 1). Certified list due 2024-08-26.
• 2026-02-06: Oral argument heard by Judges Lourie and Hughes and Chief District Judge Kleeh (sitting by designation). (CAFC audio page; CourtListener audio.) Pedersen's counsel argued Funk lacks messenger-specific profiles and that Funk's "information sources" are not "messengers."
• 2026-03-26: The Federal Circuit issued a nonprecedential opinion affirming the Board. Holding: the Board's obviousness findings were supported by substantial evidence — the Board cited several instances of Funk sorting messages by sender, which reasonably supported the messenger-specific profiling finding. Judgment entered the same day; the case is terminated (metadata; Fed. Cir. Blog; GovInfo docket entry; CAFC opinion PDF).
• Counsel on appeal: Pedersen — Robert Greenspoon, William W. Flachsbart, Mark Magas, Thomas Mansfield Dunlap (Dunlap Bennett & Ludwig PLLC). Unified — Kelly Rose Hughes, Roshan Mansinghani, Alyssa J. Holtslander (in-house; the PTAB phase was handled by Haynes and Boone's Jon Bowser, Angela Oliver, Michael McCarty, and Matt Beck).
• No fees, JMOL, or new-trial issues: none arose; the appeal resolved on the merits.

7. Parallel PTAB proceedings and their effect

• IPR2023-00029 (Unified Patents) — the operative proceeding: petition 2022-10-14, institution 2023-05-15, FWD 2024-05-10 (claims 1, 14-17 invalid), affirmed 2026-03-26. Effect: the cancellation of all asserted claims extinguished Pedersen's enforcement rights on the '920 patent as it stood; the stayed W.D. Tex. suits lost their predicate.
• IPR2023-00867 (Oracle Corp. v. Pedersen) — Oracle filed 2023-04-24 challenging the same '920 patent; Pedersen filed a preliminary response 2023-08-23; on 2023-09-27 the parties filed a joint motion to terminate based on a settlement (the related Pedersen v. Oracle, 1:23-cv-01020 W.D. Tex., was dismissed with prejudice), and the Board terminated the proceeding pre-institution on 2023-10-11 (Termination Decision: Pre-DI Settlement; $22,500 post-institution fee refunded). (GreyB/IPverse; Docket Alarm; PTACTS refund notice.) This was the one instance where a defendant settled/licensed out rather than ride the Unified IPR.

8. Outcome summary

Bottom line: Unified Patents achieved complete success. The PTAB invalidated claims 1 and 14-17 of the '920 patent, and the Federal Circuit affirmed on substantial-evidence review, holding Funk in view of Law (or Kamakura) rendered the claims obvious. The affirmance (1) foreclosed Pedersen's appeal, (2) eliminated the '920 patent's asserted claims as an enforcement asset, and (3) effectively ended the parallel W.D. Tex. infringement campaign, which had been stayed or dismissed pending the IPR.

Caveats on sourcing: The Federal Circuit opinion, dockets, and PTAB decision dates are well sourced (CAFC opinion PDF; Justia; CourtListener; GovInfo; Patexia; GreyB/IPverse; Unified Patents announcements; the Monday.com stay order). Specific district-court dismissal entries for each of the ~17 W.D. Tex. cases after the 2024 FWD were not individually verified here; if you need the terminal docket entry for each infringement case (e.g., Zendesk, Zoho, Salesforce, Blackbaud, Constant Contact post-IPR dismissals), those would require individual PACER pulls.

Threshold clarification

This matter is not a patent infringement case — it is a Federal Circuit appeal (No. 2024-2090) of the PTAB's Final Written Decision in IPR2023-00029, in which Unified Patents, LLC (petitioner) challenged U.S. Patent 6,965,920. The party the user refers to as "plaintiff" is Peter Henrik Pedersen, who is the patent owner and appellant (the party that would sit on the plaintiff-side of the underlying dispute). Pedersen's counsel of record are identified below from the Federal Circuit opinion and docket, with PTAB-level counsel noted separately. No filings are sealed and counsel appearances are on the public docket.

Counsel of record for appellant Peter Henrik Pedersen (Federal Circuit, No. 2024-2090)

Per the Federal Circuit's nonprecedential opinion in Pedersen v. Unified Patents, LLC, No. 24-2090 (Fed. Cir. Mar. 26, 2026) (Lourie, Hughes, Kleeh): "ROBERT GREENSPOON, Dunlap Bennett & Ludwig PLLC, Chicago, IL, argued for appellant. Also represented by WILLIAM W. FLACHSBART, MARK MAGAS; THOMAS MANSFIELD DUNLAP, Vienna, VA."

Sources: Fed. Cir. Opinion, No. 24-2090 (cafc.uscourts.gov; govinfo.gov); CourtListener docket 72243275 (PACER/RECAP feed); DBL firm profiles (dbllawyers.com, Super Lawyers, Martindale); Delaware district court opinion listing in Averon v. AT&T.

PTAB-level counsel for Pedersen (IPR2023-00029) — for completeness

At the Board, Pedersen was separately represented (not the appellate counsel of record), per the Patent Owner's Updated Mandatory Notices (Jan. 23, 2024) and the hearing transcript:

• Joseph Zito — Lead counsel, Whitestone Law, 1850 Towers Crescent Plaza, Suite 550, Tysons, VA (Reg. No. 32,076).
• Erik Lund — Backup counsel, Whitestone Law, Tysons, VA (Reg. No. 77,473).

Appellee side (for orientation)

Unified Patents was represented on appeal by Kelly Rose Hughes (argued; in-house, Unified Patents, LLC, Washington, DC/Chevy Chase, MD), Roshan Mansinghani (in-house), and Alyssa J. Holtslander (in-house, Chevy Chase, MD), with Haynes and Boone LLP (Raghav Bajaj, Jonathan Bowser, Angela Oliver, Matthew Beck) having handled the PTAB stage.

Bottom line: If you mean the party adverse to Unified Patents (Pedersen, the patent owner/appellant), the counsel of record on appeal are Robert Greenspoon (lead/arguing), William W. Flachsbart, Mark Magas, and Thomas Mansfield Dunlap, all of Dunlap Bennett & Ludwig PLLC — with Whitestone Law (Zito/Lund) having represented him before the PTAB.

Counsel for the "Defendant" — Unified Patents, LLC (Appellee)

Threshold clarification

This matter is not a patent infringement case. As established in the prior sections, No. 2024-2090 is Pedersen's Federal Circuit appeal from the PTAB's Final Written Decision in IPR2023-00029, where Unified Patents, LLC was the petitioner (now appellee). In the case metadata, Unified Patents is designated the "Defendant" — but functionally it is the defensive challenger, not an accused infringer. The accused infringers from Pedersen's W.D. Tex. campaign (Google, Microsoft, Zoho, Oracle, Salesforce, etc.) are not parties to this appeal and are represented by their own separate counsel in the underlying (mostly settled or transferred) district actions — a different docket universe that is outside the record here. No filings in this appeal are sealed; counsel below are from the public opinion and docket.

Appellate counsel of record for appellee Unified Patents (Fed. Cir. No. 2024-2090)

The Federal Circuit's nonprecedential opinion (Mar. 26, 2026; Lourie, Hughes, Kleeh) recites the appellee side as: "KELLY ROSE HUGHES, Unified Patents, LLC, Washington, DC, argued for appellee. Also represented by ROSHAN MANSINGHANI; ALYSSA J. HOLTSLANDER, Chevy Chase, MD." Unified Patents' own announcement confirms the case "was brought fully in-house once it was appealed and handled by Kelly Hughes and Alyssa Holtslander" — i.e., no outside firm appeared for Unified at the Federal Circuit.

PTAB-stage counsel for Unified Patents (IPR2023-00029) — for completeness

The Board-stage representation (which produced the decision affirmed on appeal) was a Haynes and Boone / in-house split, per the Petitioner's Updated Mandatory Notices (Nov. 15, 2023) and the hearing transcript:

• Raghav Bajaj — Lead counsel, Haynes and Boone, LLP, 2801 N. Harwood St., Suite 2300, Dallas, TX (Reg. No. 66,630).
• Jonathan R. Bowser — Backup counsel, Haynes and Boone, Dallas (Reg. No. 54,574); Unified's go-to outside IPR counsel across many proceedings.
• Angela M. Oliver — Backup counsel, Haynes and Boone, Dallas (Reg. No. 73,271).
• Michael McCarty — Backup counsel (added Nov. 15, 2023), Haynes and Boone, Dallas (Reg. No. 76,371).
• Matthew Beck — Backup counsel; transitioned from Haynes and Boone to in-house at Unified Patents during the proceeding (Reg. No. 79,791).
• Kelly Hughes and Alyssa Holtslander — In-house backup counsel at the Board as well (see above).
• Ellyar Y. Barazesh — In-house, Unified Patents, LLC, listed on Board filings for the petitioner.

Expert: Dr. Henry H. Houh provided the petitioner's expert declaration (Ex. 1003), whose testimony the Board and Federal Circuit credited on limitation 1.4.

Bottom line

If "the defendant" means the adverse party to Pedersen in this appeal, the counsel of record are Kelly Rose Hughes (argued; in-house), Roshan Mansinghani (in-house), and Alyssa J. Holtslander (in-house), all of Unified Patents, LLC — with the underlying IPR having been litigated by Haynes and Boone (Bajaj, Bowser, Oliver, McCarty) alongside in-house Unified counsel. If instead you meant the district-court defendants in Pedersen's underlying W.D. Tex. campaign, those entities are not parties to this appeal and their respective counsel (e.g., for Zoho, Google, Microsoft, etc.) must be pulled from each individual district docket; I did not fabricate any of those names here.