Hypertherm v. Schedule A Defendants: Default Judgment in Plasma Cutter IP Case
Hypertherm, Inc. secured a full default judgment against anonymous online sellers accused of infringing three patents covering its Powermax65 plasma cutting technology. Filed and resolved in the Northern District of Illinois, the case closed in just 125 days — consistent with the accelerated Schedule A enforcement strategy increasingly used against counterfeit e-commerce sellers.
Hypertherm deploys Schedule A strategy to protect Powermax65 plasma IP
On June 21, 2024, Hypertherm, Inc. — the New Hampshire-based manufacturer of industrial plasma cutting systems — filed suit in the U.S. District Court for the Northern District of Illinois against an anonymous group of online sellers identified only as ‘The Individuals, Partnerships and Unincorporated Associations Identified in Schedule A.’ Hypertherm asserted three patents: US8115136B2, US8546718B2, and US8541712B2, all relating to plasma cutting technology associated with its Powermax65 product line, including an ASIN (B08LDLR9IR) flagged as selling infringing or counterfeit goods.
The case closed on October 24, 2024, after Judge Georgia N. Alexakis granted Hypertherm’s Motion for Entry of Default Judgment in its entirety. Default judgment is entered when defendants fail to appear or respond; here, the unnamed e-commerce defendants did not contest the action. The court found all defaulting defendants liable and entered final judgment against them on the merits, giving Hypertherm a complete procedural and substantive win without a contested trial.
The 125-day duration is consistent with the streamlined lifecycle typical of Schedule A cases in the Northern District of Illinois, which has become a preferred venue for IP holders targeting anonymous online marketplace sellers. What remains unknown from the public record is the damages quantum awarded, whether any asset freezes or injunctions were enforced against specific marketplace accounts, and whether any defendants were ultimately identified by name. The use of three concurrent patents suggests Hypertherm constructed a layered enforcement posture designed to foreclose design-around strategies.
Filing to Judgment on the merits for Plaintiff in 125 days
125 days — faster than the median Schedule A default judgment timeline in N.D. Ill.
Default judgment granted: what the ruling means for both parties
Default judgment: full relief without a contested merits trial
A default judgment is entered when defendants fail to appear or respond to a complaint. The court treats the well-pleaded allegations as admitted and may award the relief requested. Here, Judge Alexakis granted Hypertherm’s motion in its entirety, meaning all liability findings and remedial orders requested by Hypertherm were adopted. This is not a settlement — it is a final court order on the merits, carrying the same enforceability as a judgment after trial.
Final judgment on the meritsHypertherm achieves full enforcement without litigation risk
For Hypertherm, default judgment represents the optimal enforcement outcome: it obtained a binding court order on three patents without having to prove infringement through discovery or trial. The judgment validates all three asserted patents in the context of this action and supports downstream enforcement — including marketplace account takedowns, payment processor freezes, and potential asset recovery — against the named defendant class. It also signals to the broader counterfeit seller ecosystem that Hypertherm actively monitors and litigates.
Full plaintiff relief grantedAnonymous sellers face binding judgment and enforcement exposure
The defaulting defendants — anonymous individuals and entities operating e-commerce storefronts — now face a final judgment that can be used to compel marketplace platforms to delist products, freeze funds, and disclose seller identities. Because they failed to appear, defendants forfeited any opportunity to contest validity, non-infringement, or damages. Any defendant later identified has limited recourse: vacating a default judgment requires demonstrating excusable neglect or a meritorious defence, a high bar once final judgment has been entered.
No contest — binding liabilitySchedule A enforcement strengthens Powermax65 brand protection
This case illustrates how established manufacturers like Hypertherm use multi-patent Schedule A actions to deter counterfeit distribution on Amazon and similar platforms. By asserting three patents simultaneously, Hypertherm raises the complexity and cost of any future design-around attempt. The N.D. Illinois venue, with its established Schedule A case management procedures, enables rapid default judgments — compressing enforcement timelines and improving ROI on litigation spend. Competitors and OEM suppliers in the plasma cutting sector should monitor Hypertherm’s portfolio for adjacent claims.
Multi-patent deterrence strategyFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Hypertherm, Inc. | Company | Industrial plasma cutting systems manufacturer — holder of US8115136B2, US8546718B2, US8541712B2Search in Eureka ↗ |
| Defendant | The Individuals , Partnerships and Unincorporated Associations Identified in Schedule A | Individual | Anonymous online marketplace sellers identified collectively via Schedule A filing.Search in Eureka ↗ |
| Plaintiff counsel | Brian N. Platt | Attorney | Counsel for Hypertherm, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Collin Hansen | Attorney | Counsel for Hypertherm, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Kenneth J Dyer | Attorney | Counsel for Hypertherm, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Workman Nydegger PC | Law Firm | Representing Hypertherm, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Georgia N Alexakis | Judge | Illinois Northern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order — granting the default judgment motion ‘in its entirety’ and deeming defendants ‘in default’ — leaves no ambiguity: the judgment is final, unconditional, and entered on the merits. The phrase ‘in its entirety’ is significant because it indicates the court adopted all relief requested by Hypertherm, including any injunctive, monetary, or equitable components of the motion. For the defendants, this forecloses any argument that liability was only partially established. The judgment is immediately enforceable against identified defendants and usable as a basis for third-party platform compliance requests.
US8115136B2, US8546718B2 & US8541712B2 — Plasma Cutting System Patents
The three patents asserted — US8115136B2, US8546718B2, and US8541712B2 — cover technology in the plasma arc cutting domain, associated with Hypertherm’s Powermax65 system. US8115136B2 derives from application 11/709315, while US8546718B2 and US8541712B2 both originate from the 13/331906 and 13/331947 application families respectively, suggesting closely related continuation or divisional lineage. Plasma cutting patents in this class typically protect torch architecture, power delivery systems, consumable design, and arc initiation methods — core differentiators in professional-grade cutting equipment.
For the industrial cutting tools sector, Hypertherm’s patent portfolio around the Powermax65 represents a significant IP moat. The Powermax65 is a widely distributed professional plasma cutter; its patent protection spans both system-level and component-level claims, making it difficult for counterfeit or grey-market products to replicate key functionality without risk. Competitors developing plasma systems, aftermarket consumables, or compatible torch assemblies should conduct thorough FTO analysis against these three patents — particularly given Hypertherm’s demonstrated willingness to litigate at scale using Schedule A procedures.
Should you run an FTO against US8115136B2, US8546718B2, and US8541712B2?
Any company developing, importing, or distributing plasma cutting systems, torch assemblies, consumables, or power supply units that interact with Powermax65-class equipment should treat these three patents as live enforcement risk. Hypertherm has demonstrated it monitors ASINs at the product listing level and pursues default judgment efficiently — meaning infringement exposure can convert to a binding court order in under 125 days. Aftermarket parts manufacturers and OEM torch suppliers are particularly exposed.
PatSnap Eureka’s FTO Search Agent can map your product’s technical features against the independent claims of US8115136B2, US8546718B2, and US8541712B2, identify the prosecution history for each application family, and surface related Hypertherm portfolio patents that may present adjacent risk. Running a structured FTO before product launch or marketplace listing is the most cost-effective way to reduce enforcement exposure in this technology area.
Run a freedom-to-operate analysis on US8115136B2 to assess your product’s exposure
Run FTO in Eureka →Similar plasma cutting and Schedule A patent cases in N.D. Illinois
Cases involving plasma cutting technology patents and Schedule A e-commerce enforcement in the Northern District of Illinois, including comparable default judgment actions.
What this case signals for the plasma cutting and industrial tools IP landscape
Hypertherm’s three-patent default judgment highlights how industrial hardware IP is increasingly enforced against e-commerce grey markets.
Schedule A actions are now core enforcement tools for hardware IP holders
The Northern District of Illinois has become the dominant venue for Schedule A e-commerce enforcement. Hardware manufacturers like Hypertherm are leveraging this framework to obtain rapid default judgments against counterfeit sellers without lengthy discovery. IP teams at industrial equipment companies should assess whether their portfolios are structured to support similar multi-patent Schedule A campaigns.
Three-patent stacking limits design-around options for counterfeit sellers
Asserting US8115136B2, US8546718B2, and US8541712B2 together — all covering different aspects of plasma cutting systems — suggests a deliberate claim-layering strategy. Even if one patent were invalidated or designed around, the others maintain enforcement coverage. R&D teams working in plasma cutting or adjacent torch technology should conduct FTO analysis against all three patents before commercialising related products.
Hypertherm v Individuals — key questions answered
Hypertherm asserted three patents: US8115136B2, US8546718B2, and US8541712B2. All three relate to plasma cutting systems and are associated with Hypertherm’s Powermax65 product line. The patents derive from application numbers 11/709315, 13/331906, and 13/331947 respectively.
A Schedule A case is a patent (or trademark) infringement action filed against a large group of anonymous online sellers whose identities are initially withheld and listed in a sealed schedule. The Northern District of Illinois is the preferred venue because it has established, streamlined procedures for handling these cases, including TROs, asset freezes, and rapid default judgments against e-commerce defendants who fail to appear.
Default judgment was entered because the defendants failed to appear or respond to Hypertherm’s complaint. Judge Alexakis granted Hypertherm’s motion in its entirety, meaning all liability findings and relief requested were adopted. The judgment is final and enforceable, and defendants forfeited the right to contest infringement, patent validity, or damages by failing to participate.
The complaint identifies Amazon ASIN B08LDLR9IR as a specific product listing associated with the infringing or counterfeit goods. This ASIN-level specificity indicates Hypertherm conducted targeted marketplace monitoring before filing suit. It also provides the basis for enforcement actions against Amazon and other platform operators to delist the product and freeze associated seller funds.
A defaulting party can seek to vacate a default judgment under FRCP 55(c) or 60(b), but must demonstrate excusable neglect, a meritorious defence, and lack of prejudice to the opposing party. Given that a final judgment was entered after a motion hearing, the bar is high. Defendants who were never properly identified may face additional procedural hurdles in establishing standing to challenge the judgment.
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