ServStor Technologies v. Broadcom Corp. — Dismissed With Prejudice in 148 Days
ServStor Technologies, LLC asserted four US patents covering network storage and Ethernet switching technologies against a broad portfolio of Broadcom semiconductor products. Filed in the Eastern District of Texas in September 2024, the case ended with a voluntary dismissal with prejudice just 148 days later — permanently extinguishing ServStor’s claims against Broadcom on those patents.
A broad network-storage patent assertion against Broadcom ends early and permanently
ServStor Technologies, LLC — represented by Fabricant LLP and Rubino Law LLC — filed suit against Broadcom Corporation in the Eastern District of Texas (Case No. 2:24-cv-00761) on 19 September 2024. The complaint asserted four US patents: US7643476B2, US7688814B2, US7742473B2, and US7602773B2, targeting a wide sweep of Broadcom products including Ethernet controller ICs, RAID controllers, SAS/SATA storage I/O controllers, NVMe switch adapters, fibre channel host bus adapters, RoboSwitch and StrataXGS/StrataDNX Ethernet switches, and wireless LAN SoCs.
On 14 February 2025 — just 148 days after filing — ServStor filed a Notice of Voluntary Dismissal under Rule 41(a)(1)(A)(i), expressly with prejudice. The court accepted and acknowledged the notice, directed the clerk to close the case, and denied all remaining relief requests as moot. A dismissal with prejudice is a final adjudication on the merits under res judicata principles: ServStor is permanently barred from re-asserting these four patents against Broadcom in any future action.
The 148-day duration is notably short for a multi-patent EDTX infringement action of this scope, and the with-prejudice designation is commercially significant — it was not required under Rule 41(a)(1)(A)(i) if no answer or summary judgment motion had been served. The decision to voluntarily concede finality typically suggests a settlement, licensing agreement, or strategic reassessment, though no public record confirms the underlying terms. What drove the resolution — whether a licence, payment, or a threat of IPR filings against the asserted patents — remains unknown from the public docket.
Filing to Voluntary dismissal in 148 days
148 days — below the EDTX median for patent cases, suggesting early resolution
Dismissed with prejudice: what the Rule 41 exit means for both sides
Rule 41(a)(1)(A)(i) dismissal with prejudice — a permanent exit
Rule 41(a)(1)(A)(i) allows a plaintiff to dismiss unilaterally before the defendant serves an answer or a motion for summary judgment. ServStor chose to append ‘with prejudice,’ which was not procedurally required. That election converts what would be a risk-free exit into a final adjudication — the same legal effect as a judgment on the merits, permanently extinguishing the claims.
Final on the meritsServStor permanently surrenders its infringement claims against Broadcom
By dismissing with prejudice, ServStor Technologies forfeits any future right to assert US7643476B2, US7688814B2, US7742473B2, or US7602773B2 against Broadcom Corporation. Res judicata bars re-filing. This outcome is commercially significant for a patent assertion entity — unless a confidential settlement or licence agreement was reached prior to dismissal, the move represents a complete relinquishment of leverage on these patents against Broadcom.
Claims permanently barredBroadcom gains permanent immunity on four asserted patents
Broadcom Corporation secures a strong procedural shield: the with-prejudice dismissal means ServStor cannot revive these claims in any US court. Broadcom’s Ethernet controller, RAID, NVMe, SAS, switching, and fibre channel product lines — all named in the complaint — are effectively clear of this specific patent threat. The early resolution also avoids costly claim construction and discovery proceedings in the Eastern District of Texas.
Permanent immunity securedVoluntary with-prejudice exits often signal undisclosed licence terms
In patent assertion entity litigation, a plaintiff electing a with-prejudice dismissal before any answer is filed typically suggests a confidential resolution — a lump-sum payment, cross-licence, or covenant not to sue — was negotiated in parallel. The breadth of Broadcom products named (18 distinct product categories) and the speed of resolution (148 days) are consistent with a commercially motivated settlement rather than a purely strategic retreat.
Likely confidential settlementFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | ServStor Technologies, LLC | Company | Patent assertion entity — holder of US7643476B2 and three related network-storage patentsSearch in Eureka ↗ |
| Defendant | Broadcom Corporation | Company | Broadcom Corporation — global semiconductor leader in Ethernet, storage, and networking ICsSearch in Eureka ↗ |
| Plaintiff counsel | Alfred Ross Fabricant | Attorney | Counsel for ServStor Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Michael Mondelli , III | Attorney | Counsel for ServStor Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Peter Lambrianakos | Attorney | Counsel for ServStor Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Vincent J. Rubino , III | Attorney | Counsel for ServStor Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Fabricant LLP | Law Firm | Representing ServStor Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Fabricant LLP (NY) | Law Firm | Representing ServStor Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Rubino Law LLC | Law Firm | Representing ServStor Technologies, LLCSearch in Eureka ↗ |
| Defendant counsel | Joshua H. Lee | Attorney | Counsel for Broadcom CorporationSearch in Eureka ↗ |
| Defendant counsel | Kevin M. Bell | Attorney | Counsel for Broadcom CorporationSearch in Eureka ↗ |
| Defendant counsel | Melissa Richards Smith | Attorney | Counsel for Broadcom CorporationSearch in Eureka ↗ |
| Defendant counsel | Russell A. Korn | Attorney | Counsel for Broadcom CorporationSearch in Eureka ↗ |
| Defendant law firm | Gillam & Smith, LLP | Law Firm | Representing Broadcom CorporationSearch in Eureka ↗ |
| Defendant law firm | Kilpatrick Townsend & Stockton LLP (Atlanta) | Law Firm | Representing Broadcom CorporationSearch in Eureka ↗ |
| Defendant law firm | Kilpatrick Townsend & Stockton LLP (Denver) | Law Firm | Representing Broadcom CorporationSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order accepts ServStor’s Rule 41(a)(1)(A)(i) notice verbatim and makes explicit that the dismissal is with prejudice — a designation ServStor itself chose. The phrase ‘ACCEPTS AND ACKNOWLEDGES’ signals ministerial acceptance rather than judicial merits review, yet the legal effect is equivalent to a final judgment. By denying all pending relief ‘as moot,’ the court confirms no ancillary motions (such as Rule 11 sanctions or fee motions) were pending at the time. The public record does not disclose whether a settlement agreement underlies the dismissal.
US7643476B2 — network packet switching and storage interconnect architecture
US7643476B2 (application US10/791338) is one of four related patents asserted by ServStor covering network storage and Ethernet switching architectures. The patents span applications filed across the mid-2000s — a period when Ethernet-based storage networking and SAS/SATA controller integration were becoming foundational to enterprise data centre infrastructure. The technology domain encompasses packet switching, storage I/O controller interfaces, and network adapter communication protocols — all areas directly implicated by Broadcom’s core semiconductor product lines.
The strategic significance of these patents lies in their breadth of application across modern semiconductor designs. Broadcom’s BCM88490, StrataXGS, and StrataDNX switching families, along with its RAID-on-chip and SAS I/O controller products, represent high-volume enterprise infrastructure components. Patents covering foundational switching and storage interface architectures — even those filed in the mid-2000s — can threaten large product portfolios if claim scope is interpreted broadly. This case illustrates the ongoing PAE risk for semiconductor vendors whose products implement standardised network storage protocols.
Should you run an FTO against US7643476B2 and the ServStor patent family?
Any company designing or selling Ethernet controllers, RAID controllers, SAS/SATA storage I/O controllers, NVMe switch adapters, fibre channel HBAs, or Ethernet switching SoCs should treat the four ServStor patents as live FTO targets. The with-prejudice dismissal against Broadcom does not extinguish these patents’ enforceability against other parties. If your product roadmap includes enterprise networking silicon, storage interconnect ICs, or network switching ASICs, clearance analysis against this family is commercially prudent.
PatSnap Eureka’s FTO Search Agent can map claim scope across US7643476B2, US7688814B2, US7742473B2, and US7602773B2 against your specific product architecture. Eureka identifies independent claim elements, surfaces prior art that may narrow enforceable scope, and flags related continuations or divisionals in the same family that could be asserted against you even if the parent patents are design-arounded. For semiconductor IP teams, this analysis is most valuable ahead of new product tape-outs or market entry decisions.
Run a freedom-to-operate analysis on US7643476B2 to assess your product’s exposure
Run FTO in Eureka →Similar PAE patent cases against Ethernet and storage semiconductor companies in EDTX
Cases involving PAE assertions of network switching and storage controller patents against semiconductor defendants in the Eastern District of Texas follow recognisable strategic patterns.
What this case signals for the semiconductor and network-storage IP landscape
A broad multi-patent assertion resolved in under five months highlights the strategic dynamics facing semiconductor IP holders and large chip vendors.
EDTX remains a preferred venue for PAE actions against semiconductor companies
The Eastern District of Texas continues to attract patent assertion entities targeting semiconductor defendants like Broadcom. Its plaintiff-friendly reputation, coupled with predictable scheduling orders, gives PAEs early leverage to negotiate before costly claim construction. Companies with large networking and storage IC portfolios should maintain EDTX-specific litigation readiness and monitor new filings proactively.
Broad product targeting amplifies settlement pressure on semiconductor defendants
ServStor’s complaint named 18 distinct Broadcom product categories across Ethernet, RAID, SAS, NVMe, and switching. This breadth — typical of PAE strategy — forces defendants to evaluate infringement risk across an entire product portfolio simultaneously. Semiconductor firms should maintain pre-litigation FTO clearance on legacy patents covering foundational network-storage architectures to reduce this exposure.
ServStor v Broadcom — key questions answered
The with-prejudice dismissal under Rule 41(a)(1)(A)(i) operates as a final adjudication on the merits. ServStor Technologies is permanently barred by res judicata from asserting US7643476B2, US7688814B2, US7742473B2, and US7602773B2 against Broadcom Corporation in any future action. The patents themselves remain enforceable against all other defendants.
Under Rule 41(a)(1)(A)(i), a plaintiff may dismiss without prejudice before the defendant serves an answer or summary judgment motion. Electing with-prejudice status was ServStor’s own choice and was not required. This is consistent with a negotiated resolution — a confidential licence or settlement — where Broadcom likely required a with-prejudice dismissal as a condition of any agreement, though the public record does not confirm this.
The complaint targeted 18 distinct Broadcom product categories including the BCM88490, Ethernet Controller ICs (BCM57416/57417/57412/57414/57502/57504/57508), RAID controller cards, RAID-on-Chip ICs, NVMe switch adapters, SAS expanders, SAS/SATA storage I/O controllers, fibre channel storage I/O controllers, StrataXGS and StrataDNX Ethernet switches, RoboSwitch Ethernet switches, host bus adapters, network adapters, FBAR filters, hard disk drive SoCs, wireless LAN infrastructure SoCs, and DX NetOps software.
Yes. The with-prejudice dismissal only bars ServStor from suing Broadcom on these patents. US7643476B2, US7688814B2, US7742473B2, and US7602773B2 remain valid and enforceable against any other party. Companies selling Ethernet controllers, RAID chips, SAS controllers, or NVMe adapters should treat these patents as live assertion risk and conduct FTO clearance accordingly.
The Eastern District of Texas (EDTX) is a historically popular venue for patent assertion entities due to its plaintiff-friendly local rules, experienced patent judiciary, and fast-track scheduling. Filing in EDTX signals PAE-style assertion strategy and typically elevates early settlement pressure on defendants. Broadcom engaged Gillam & Smith, LLP — a firm with deep EDTX patent defence experience — consistent with defendants seeking local expertise to manage this venue risk.
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