Vixel Corporation v. QLogic Corporation

I'll research this case thoroughly before drafting the overview.

Let me dig deeper into the case disposition, patent details, and any PTAB proceedings.

Case Overview: Vixel Corp. v. QLogic Corp. (D. Del.)

The parties. Vixel Corporation was a small, publicly traded (Nasdaq: VIXL) Fibre Channel storage-networking company based in Bothell, Washington, which went public in October 1999 and sold switches, embedded switch modules (the "InSpeed" line) and software for storage-area networks (SANs). Its CTO, Stuart Berman, was the named inventor on the company's core Fibre Channel patents; its CEO at the time of the announcement was Jim McCluney. (SFGate/Tech Digest; Vixel press release, Sept. 13, 2000) QLogic Corporation, of Aliso Viejo, California, was a much larger rival, selling SAN switches and host bus adapters (HBAs); the SEC reporting cited in contemporaneous coverage put QLogic's revenue for the year ended March 31, 2002 at $344.2 million — roughly fifteen times Vixel's annual sales, which were declining year over year (SFGate). This was therefore a classic asymmetric operating-company-versus-operating-company assertion — not an NPE/PAE case — by a struggling smaller competitor against a dominant one.

The patent and accused technology. Vixel asserted a single patent, U.S. Patent No. 6,118,776, titled "Methods and Apparatus for Fibre Channel Interconnection of Private Loop Devices," naming Stuart B. Berman as inventor, filed August 7, 1997 as a continuation-in-part of an earlier application (which issued as U.S. 6,185,203), and issued September 12, 2000 (Google Patents). In one line: the '776 patent claims ways to interconnect "private loop" Fibre Channel devices — devices that only understand the low eight bits of the Arbitrated Loop Physical Address (ALPA) and cannot log into a fabric — through a switch/fabric that filters frames by ALPA, letting multiple physically separate Arbitrated Loops be joined without requiring the endpoints to support full fabric services. Vixel characterized the invention as preserving "the simplicity of the loop" while adding switch functionality, and claimed in its own (self-interested) press release that "private loop switching is utilized in a majority of both new and existing Storage Area Network (SAN) installations" (press release, Sept. 13, 2000). The accused products were QLogic's SAN switch line — contemporaneous German-language reporting specifically identifies the SANbox2 series as the accused family (silicon.de); Vixel's complaint alleged infringement by QLogic's "storage-area network switching products" and sought damages plus an injunction (SFGate).

Procedural posture and venue. Vixel filed in the U.S. District Court for the District of Delaware on the last day of February 2003, with one report stating the complaint was received March 3, 2003 (the pleading date discrepancy is unexplained in the sources) (Byte and Switch / Network Computing, May 28, 2003; silicon.de). Notably, Vixel simultaneously sued Brocade Communications on the same '776 patent plus U.S. 6,185,203 and 6,470,007, but in the Northern District of California, targeting Brocade's SilkWorm features QuickLoop and Fabric Assist — a split-filing strategy that patent attorney David Garrod (Patterson Belknap) called "a bit strange," especially given the N.D. Cal.'s early patent-disclosure rules (Network Computing). Delaware in 2003 was a favored patent venue (speed, experienced bench, and Delaware incorporation as a basis for venue pre-TC Heartland), but I could not confirm via the sources available which Delaware judge was assigned, the case number, or the final disposition — the existing case narrative likewise flags these as unconfirmed, and PACER or a paid docket service would be needed to verify. No IPR or other PTAB proceeding on the '776 patent was found; in any event, an IPR would have been unavailable during the relevant period (the '776 patent predates the AIA, and its 20-year term from a 1997 priority date would have lapsed long before any realistic challenge window).

Why the case is notable. (1) Market context / industry impact: it was part of the early-2000s Fibre Channel SAN patent skirmish among a small club of competitors (Brocade, QLogic, Emulex, McDATA, Vixel), and was filed just as Vixel's sales were shrinking — the article quoted Garrod's observation that "[i]t's not at all uncommon when sales slow to start getting more aggressive in defending patents," with "most players in this industry… getting serious about defending their patents" (Network Computing). (2) Portfolio trajectory: the case did not stay Vixel's fight — Emulex acquired Vixel in December 2003, and in September 2004 Emulex and Brocade announced a three-year litigation standstill alongside an HBA/switch interoperability alliance, which coverage described as ending the Vixel-origin dispute (Chinese-language report, Sept. 29, 2004). The '776 family's continuations were prosecuted under Emulex Design & Manufacturing Corporation (issuing as, e.g., U.S. 7,522,619; 7,881,213; 8,121,137; 8,204,068), later moving with Emulex into Avago/Broadcom. (3) Pattern significance: the QLogic and Brocade filings together illustrate the pre-TC Heartland era of parallel, multi-district operating-company assertion and venue-shopping, and the subsequent acquisition-plus-standstill resolution — a template less common today than NPE assertion and IPR linkage, though the '776 family's survival through continuations shows how a single 1997 invention can underpin a portfolio across multiple corporate owners.

Sourcing caveats. Party descriptions, the accused SANbox2 line, the patent's identity/priority, the Feb.–Mar. 2003 Delaware filing, the Brocade companion suit, and the Emulex/Vixel/Brocade developments are supported by the sources cited above. The docket number, assigned judge, and final disposition of the Delaware action are not verified here and should be confirmed against PACER; I also found no Law360, Reuters Legal, RPX, Unified Patents, IPWatchdog, or Patently-O coverage of this specific case in the searches run, and no PTAB proceeding on the '776 patent.

I'll research this case systematically. Let me start with broad searches.

Let me dig deeper into the docket, the QLogic-Emulex case, and the settlement.

Let me look for the specific docket number, court opinions, and any PTAB proceedings.

I hit my research step limit, so the following reflects what I could confirm from public sources (contemporaneous trade press, SEC filings, and press releases) rather than a full PACER docket pull. I've flagged every gap explicitly rather than fill it in.

Vixel Corp. v. QLogic Corp. — Key Legal Developments & Outcome

Important sourcing caveat up front

This is a 2003–2004 dispute that settled at an early stage, leaving almost no published opinions and a thin public record. I could not confirm from available sources: the district court docket number, the content of QLogic's answer/counterclaims, whether any motion to dismiss/transfer/stay was filed, whether the case reached Markman, or the precise terms of dismissal. Where a fact is unconfirmed I say so. Named attorneys are not reported and I have not invented any.

The patent

• U.S. Patent No. 6,118,776, "Methods and Apparatus for Fibre Channel Interconnection of Private Loop Devices," issued September 2000 (patent numbers in the 6,118,xxx range issued Sept. 12, 2000). Contemporaneous reporting describes it as relating to methods/architecture for interconnecting private-loop Fibre Channel devices and as directed to transmitting data through network systems. It stems from applications filed February 18, 1997 by Vixel CTO Stuart B. Berman. See SFGate Tech Digest; Network Computing, "Vixel Slings Suit at Brocade" (2003-05-28).

Note on the patents at issue: The case metadata lists only the '776 patent. Trade press is inconsistent — one report frames the Delaware suit as covering "three of its patents," while another states QLogic was sued on "the very same patent" ('776) that Vixel asserted against Brocade. Coverage of the parallel Brocade case confirms three patents — 6,185,203, 6,470,007, and 6,118,776. Treat the "three patents" characterization of the QLogic complaint as unverified. The Network Computing piece specifically calls the '776 patent the "hotly contested" one, which is the source of the "hotly contested" language in the existing case summary.

1. Filing & initial pleadings

• Filing: Vixel filed in the U.S. District Court for the District of Delaware at the end of February 2003 — the last day of February was Friday, 2003-02-28. One German-language account states the complaint was docketed/received 2003-03-03, which is consistent with a Feb. 28 filing being assigned the following business day. (SFGate; silicon.de)
• Accused products: QLogic's SANbox Fibre Channel switch line (reported as "SAN Box 2"). Vixel alleged QLogic used the patented technology in its storage-area-network switching products.
• Relief sought: Damages and a court order (injunction) barring further infringement.
• Answer / counterclaims: Not confirmed. I found no public reporting or opinion describing QLogic's responsive pleading or any counterclaim (e.g., invalidity/non-infringement). That is a documentary gap, not evidence that none was filed.

2. Parallel litigation (same patent, different court)

• Vixel Corp. v. Brocade Communications Systems, Inc. — filed in the N.D. Cal. on/about 2003-05-23, asserting three Berman patents: 6,185,203, 6,470,007, and 6,118,776, targeting Brocade's SilkWorm switching products/features (QuickLoop, Fabric Assist). Commentators noted the oddity of splitting the same '776 patent across two courts, and that N.D. Cal.'s early patent-disclosure rules were a disadvantage to plaintiffs.
• QLogic Corp. v. Emulex Corp. — QLogic sued Emulex for patent infringement in December 2003, shortly before closing the circle on the Vixel acquisition.

3. Change of party (ownership of the '776 patent)

• Emulex Corp. agreed to acquire Vixel for $10/share (~$310M); announced 2003-10-08; completed 2003-11-17. Emulex thereby stepped into Vixel's shoes as plaintiff in the Delaware action and as owner of the '776 family (later assigned to Emulex Design & Manufacturing Corp.). (Emulex PR, 2003-11-17; CRN, 2003-10-08)

4. Pre-trial motions of substance (motions to dismiss / transfer / stay / summary judgment)

• None confirmed. The case appears to have resolved before contested dispositive motion practice. There is no published opinion identified for the Delaware action.

5. Claim construction (Markman)

• Not reached / not confirmed. No Markman ruling or opinion surfaced in any searched source. Given the roughly 16-month lifespan of the case, it likely resolved before or around the claim-construction stage — but I cannot confirm this.

6. Discovery milestones of strategic significance

• None documented publicly. No reported discovery orders, scheduling disputes, or ESOP/privilege rulings were found. The strategic significance in this case was commercial rather than procedural: the litigation (combined with the Brocade case) was part of Vixel's shift to monetizing its Berman patent portfolio as its product sales declined, and the portfolio was a driver of Emulex's acquisition.

7. Trial, verdict, post-trial motions

• None. There was no trial and no verdict. No JMOL, new-trial, or fee motions are reported.

8. Final disposition — settlement

• 2004-06-28 — QLogic and Emulex announced settlement of both pending suits (Vixel v. QLogic and QLogic v. Emulex), structured as a cross-license, with undisclosed financial terms. Emulex stated the settlement included a license under which QLogic pays royalties to Emulex on future sales of certain products, and that "the validity of the three Emulex U.S. patents is acknowledged." (CNET; it-times.de, 2004-06-28; Orange County Business Journal)
• The royalty structure and validity acknowledgment are notable: the case ended not merely in a walk-away, but in a paid license with a validity concession by QLogic — the practical "win" for Vixel/Emulex.
• Dismissal mechanics (entry of dismissal, whether with prejudice): not confirmed in available sources.

9. Parallel PTAB IPR/PGR proceedings

• None found. IPR/PGR did not exist in 2003–2004 (IPR effective 2012-09-16), and the '776 patent has an effective priority date of 1997, putting it near/past the end of its statutory term by the time IPR became available. I found no IPR, PGR, or reexamination record tied to the '776 patent in the litigation context. I could not fully query the PTAB database before hitting my search limit, so state this as "none found," not "none exists."

10. Related aftermath (context, adjacent to this case)

• 2004-09 — Emulex and Brocade announced a three-year litigation standstill resolving/pausing the N.D. Cal. Berman-patent suit Emulex inherited. (DoSTOR/Dostor, 2004-09-30)
• Emulex and QLogic resumed patent hostilities in later years (separate suits/patents), and Emulex separately litigated Broadcom — these are distinct disputes from the Vixel v. QLogic action and should not be conflated with it.

Bottom line / present posture

Closed. Vixel Corp. v. QLogic Corp. (D. Del.), filed ~2003-02-28 on U.S. 6,118,776, was settled on 2004-06-28 as part of a broader QLogic–Emulex cross-license in which QLogic agreed to pay royalties to Emulex and acknowledged the validity of the three asserted Emulex (ex-Vixel) patents. There was no Markman ruling, no trial, no verdict, and no appeal in the public record. The case's main significance lies in its outcome: it converted Vixel's "hotly contested" '776 patent into a royalty-bearing license with a validity admission by QLogic, and it validated the Berman Fibre Channel patent family that Emulex acquired along with Vixel.

Gaps worth confirming with primary sources

If you need certainty on the procedural detail, these are the items to pull:

1. Docket number and full docket (D. Del., filed c. Feb. 2003) — for QLogic's answer/counterclaims and any Rule 12/transfer/stay motions.
2. Settlement/dismissal order (mid-2004) — to confirm whether dismissal was with prejudice and any license terms referenced.
3. Whether the complaint asserted one or three patents — reconcile the trade-press conflict.
4. PTAB/reexam history for U.S. 6,118,776 — confirm zero proceedings.

I'll research the docket and counsel for the plaintiff in this case.

Bottom line

I was unable to verify the identity of plaintiff Vixel Corporation's counsel of record in Vixel Corp. v. QLogic Corp. (D. Del.). No source retrieved in this research pass — contemporaneous news coverage, firm bios, or public docket material — named a Vixel-side attorney or firm. Per your instruction, I am not going to supply names I cannot source. What follows is what is verifiable, plus a concrete path to fill the gap.

What is confirmed about the case

• Filing: Vixel (Bothell, WA; Nasdaq: VIXL) sued larger rival QLogic (Aliso Viejo, CA) in the U.S. District Court for the District of Delaware, filed on the last day of February 2003 (reported by Network Computing, May 28, 2003, as "the last day of February"; the SF San Francisco Chronicle "Tech Digest" item confirms a Delaware federal filing).
  • Source: https://prod.networkcomputing.com/data-center-networking/vixel-slings-suit-at-brocade ; https://www.sfgate.com/business/article/tech-digest-[1108769](/patent/1108769).php
• Patent asserted: U.S. Patent No. 6,118,776, "Methods and Apparatus for Fibre Channel Interconnection of Private Loop Devices," issued September 2000, from a 1997 application by Vixel CTO Stuart Berman.
  • Note a conflict in the reporting: SFGate/"Tech Digest" and Network Computing describe a single-patent ('776) QLogic suit, while an Orange County Business Journal executive-summary blurb says the Vixel-v-QLogic 2003 suit "alleged QLogic infringed on three of its patents." The three-patent set (6,185,203; 6,470,007; 6,118,776) is the set Vixel asserted in the parallel Brocade action. Treat the count as unresolved.
  • Source: https://www.ocbj.com/news/executive-summary-319/
• Posture: The '776 patent was described contemporaneously as "hotly contested." The dispute lineage ran Vixel → QLogic (2003), QLogic was later countersuing Emulex (which had acquired Vixel) in December, and the parties ultimately cross-licensed as part of a settlement for undisclosed terms. That strongly implies the Delaware action terminated by settlement/dismissal rather than judgment, but I could not confirm the disposition docket entry.
  • Source: https://www.ocbj.com/news/executive-summary-319/

The one counsel name I can verify — and it's the wrong side

Brian L. Jackson — listed as "of counsel" at Alavi Anaipakos (Houston, TX; formerly Howrey LLP), and holder of a BSEE from Rice and a J.D. from UCLA. His firm bio expressly claims: "Vixel Corp. v. QLogic Corp. – Successful defense of QLogic in patent infringement litigation involving Fibre Channel switching products, including a favorable settlement for the client."

• He is defense-side (QLogic) counsel, not plaintiff's counsel. He is a useful anchor for the case's existence and outcome, but he does not satisfy your request.
• Source: https://www.aatriallaw.com/our-team/brian-jackson/
• Separately, the Network Computing article quotes David Garrod of Patterson Belknap Webb & Tyler LLP as a neutral commentator on the venue choice — he was not counsel in the case.

Why the plaintiff's side is not recoverable from open web sources

• The suit is from February 2003, predating broad PACER/Justia/RECAP coverage of D. Del. patent dockets; CourtListener searches for "Vixel" + "QLogic" returned nothing.
• Contemporary coverage (SFGate, Network Computing, OCBJ) reported the allegations, not appearances.
• Delaware practice would have required local counsel (a Delaware-barred firm) alongside Vixel's lead trial counsel — so a complete answer likely involves two firms, neither of which I can name without fabricating.

How to actually get the answer (recommended next steps)

1. PACER — D. Del. Historical Docket. Search by party name "Vixel" for C.A. numbers around 03-cv-002xx (Delaware filings in late Feb. 2003). Pull the docket sheet and look for the Complaint (signature block), Entry of Appearance, Motion for Pro Hac Vice (which names out-of-state lead counsel and their firm), and Stipulation of Dismissal (whose signature blocks name settling counsel). D. Del. at that era was paper-transitional; you may need the National Archives / FRC for a closed 2003 case file.
2. The complaint itself is the single richest document — it will carry the filing attorney's name, firm, bar number, and address.
3. Contemporaneous law-firm press releases / American Lawyer / Legal Times for Feb.–Mar. 2003, and IP Law Bulletin / Delaware Law Weekly docket columns, which frequently named D. Del. appearances. Vixel's outside IP counsel of that era is the key search term.
4. Emulex's SEC filings (10-K/10-Q, 2003–2005) — as Vixel's acquirer, Emulex would have had to disclose material litigation and sometimes outside counsel/legal fee details.

Explicit caveats

• No plaintiff-side attorney, firm, or office location is stated here because none could be verified. Any name offered for Vixel's side in this case would be invented.
• Consequential details I also could not confirm: the D. Del. civil action number, the exact filing date, whether the '776 was the sole patent or one of three, and the docket entry terminating the case.
• The only counsel-of-record fact I can stand behind is the QLogic defense attribution to Brian L. Jackson (firm-bio sourced, self-reported, not docket-verified).

I'll research this case using web search across docket sources, firm announcements, and press coverage.

Good — I've confirmed the case was filed in late February 2003. Now let me find the docket number and counsel.

Let me try docket aggregators directly.

Bottom line

I was unable to confirm any counsel of record for QLogic in this case from the sources available to me. I am not going to name attorneys I cannot source. What follows separates what I verified from what I could not.

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What I did verify about the case

I could not confirm the D. Del. docket number. Filing in Feb/Mar 2003 places it in the 1:03-cv-00xx range, but I did not retrieve a docket sheet confirming the number, so I won't state one.

Counsel of record — not established

• No PACER/RECAP docket sheet, opinion text, firm press release, or news item identifying QLogic's litigation or local counsel was retrievable in my searches.
• The case appears to have settled in mid-2004 before any substantive opinion issued, which is consistent with the near-total absence of published counsel records.
• Nothing in the sources I found suggests the filings are sealed — the gap is one of unavailable/low-signal records for a 20+ year-old, settled, non-precedential matter, not a sealing order.

One name to explicitly rule out

David Garrod (Patterson Belknap Webb & Tyler LLP) appears in the Network Computing article — but as a neutral commentator quoted on the strategy of filing in two different courts, not as counsel to either party. Do not list him as counsel of record.

Names I will not supply

QLogic's historical IP-litigation firms and its Delaware local counsel in that era are frequently guessed at (Morris Nichols Arsht & Tunnell and Richards Layton Finger are the customary Delaware houses, and QLogic had California patent counsel), but I have no sourced basis tying any specific firm or attorney to this docket. Listing them would be fabrication.

How to close the gap (recommended verification path)

1. PACER, D. Del. — query "Vixel" as party name for 2003; the 1:03-cv docket will list "Attorney(s) to be noticed" with Delaware-bar admissions and pro hac vice entries. This is the authoritative source and the only one that will settle the question.
2. Emulex SEC filings (10-K/10-Q, 2003–2004) — patent-litigation contingency disclosure footnotes often name outside counsel or at least describe the Vixel/QLogic matter.
3. Vixel SEC filings (10-Q/10-K, FY2003) — same, and Vixel's smaller legal spend may name the firm.
4. CourtListener/RECAP — worth a direct docket-number search, though 2003 D. Del. coverage is spotty.
5. QLogic 10-K (FY2004) — will at minimum confirm the captioned case name and number as disclosed to the SEC.

If you can supply the docket number (or a PACER docket sheet), I can identify each attorney's name, admitted-bar status, and firm, and then research their patent-litigation track records.