US Well Services & ProFrac v. Halliburton: Federal Circuit Affirms Patent Invalid
US Well Services LLC and ProFrac Holding Corp. asserted US10934824B2 — covering vibration-reduction systems for pressure pumping fleets — against oilfield services giant Halliburton. After 585 days of appellate proceedings, the Federal Circuit affirmed the patent’s unpatentability, leaving the challengers without protection on a core electric fracturing technology.
Federal Circuit kills electric frac fleet vibration patent in Halliburton win
US Well Services LLC — later consolidated under ProFrac Holding Corp. — sought to protect technology described in US10934824B2, which claims a system for reducing vibrations in a pressure pumping fleet used in hydraulic fracturing operations. The patent sits at the intersection of electric-drive completions technology and precision mechanical engineering, covering an area of growing commercial importance as the oilfield services sector accelerates its shift toward electric frac fleets. Halliburton, one of the largest oilfield services companies in the world, challenged the patent’s validity before the USPTO’s Patent Trial and Appeal Board.
The PTAB found US10934824B2 unpatentable, and US Well Services and ProFrac appealed to the Court of Appeals for the Federal Circuit under Case No. 24-1112. On 9 June 2025, the Federal Circuit affirmed the PTAB’s unpatentability determination, meaning the lower tribunal’s cancellation of the patent was upheld without reversal or remand. For Halliburton, the affirmance eliminates any lingering infringement risk under this patent. For the appellants, the ruling extinguishes the patent right entirely — foreclosing future licensing or enforcement leverage against Halliburton or any other operator.
The 585-day duration from appeal filing to decision is consistent with moderately complex Federal Circuit PTAB appeals, though it suggests no expedited treatment was granted. The public record does not disclose the precise prior art grounds that underpinned the PTAB’s unpatentability finding, nor the specific claim limitations at issue. It remains unknown whether US Well Services or ProFrac hold continuation applications or related patents that could partially cover the same vibration-reduction technology, which would be a material consideration for competitors monitoring the electric frac IP landscape.
Filing to Unpatentable in 585 days
585 days from filing to Federal Circuit decision — above the median for single-patent PTAB appeal proceedings
Federal Circuit affirms: what the unpatentability ruling means for both parties
Affirmance means the PTAB’s cancellation is now final
When the Federal Circuit affirms a PTAB unpatentability determination, it signals that the appellate panel found no reversible legal error in the Board’s analysis — whether on claim construction, prior art application, or procedural grounds. The effect is conclusive: US10934824B2 is cancelled as a matter of U.S. patent law, with no further avenue for reinstatement at this stage short of en banc rehearing or Supreme Court certiorari.
No reversible error foundProFrac and US Well Services lose core electric frac IP protection
With the patent cancelled and affirmance final, US Well Services and ProFrac can no longer assert US10934824B2 against Halliburton or any third party. Any licensing programme built around this patent is effectively terminated. The appellants’ commercial position in the electric frac fleet market is weakened to the extent this patent represented a differentiating IP barrier. Related continuation or divisional applications, if any exist, would require independent scrutiny to assess residual coverage.
Patent extinguishedHalliburton secures freedom to operate across this vibration-reduction technology
The affirmance is a clean outcome for Halliburton. With US10934824B2 cancelled, Halliburton’s electric and conventional pressure pumping fleets face no exposure under this specific patent. The decision also signals that Halliburton’s PTAB strategy — filing an inter partes review or post-grant review petition — succeeded across two levels of adjudication, which typically raises the bar for any subsequent challenge by the same patent family.
Full FTO on this patentElectric frac IP landscape opens — but related filings warrant monitoring
The cancellation of a vibration-reduction patent in the pressure pumping space potentially broadens the design freedom available to electric frac fleet developers and operators. However, the underlying engineering problem — managing vibration in high-pressure electric pumping systems — remains commercially significant. Competitors and new entrants should monitor the US Well Services and ProFrac patent portfolios for continuation applications, as cancelled patents occasionally have surviving family members with overlapping claim scope.
Monitor patent familyFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | US Well Services, LLC | Company | Electric fracturing technology developer — holder of US10934824B2 on pressure pumping vibration systemsSearch in Eureka ↗ |
| Co-Plaintiff | ProFrac Holding, Corp. | Company | Search in Eureka ↗ |
| Defendant | Halliburton, Co. | Company | Halliburton Co. — global oilfield services company and PTAB petitioner challenging US10934824B2Search in Eureka ↗ |
| Plaintiff counsel | Matthew James Dowd | Attorney | Counsel for US Well Services, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Robert James Scheffel | Attorney | Counsel for US Well Services, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Dowd Scheffel PLLC | Law Firm | Representing US Well Services, LLCSearch in Eureka ↗ |
| Defendant counsel | Chad C. Walters | Attorney | Counsel for Halliburton, Co.Search in Eureka ↗ |
| Defendant law firm | Baker Botts LLP | Law Firm | Representing Halliburton, Co.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Appeals for the Federal CircuitSearch in Eureka ↗ |
Official order — verbatim text
The single-word verdict — AFFIRMED — carries significant legal weight in the Federal Circuit context. At the appellate level, affirmance of a PTAB unpatentability determination typically reflects the court’s application of the substantial evidence standard to factual findings (such as the scope and content of prior art) and de novo review of legal conclusions on obviousness or anticipation. The absence of any remand instruction indicates that the Federal Circuit found the PTAB’s analysis sufficient on all challenged grounds, leaving no open issues for further proceedings. For US Well Services and ProFrac, the ruling is terminal for US10934824B2.
US10934824B2 — Vibration reduction system for pressure pumping fleets
US10934824B2 claims a system for reducing vibrations in a pressure pumping fleet — the array of high-pressure pumps deployed at a hydraulic fracturing wellsite. Application number US16/158756 places the filing in late 2018, a period of accelerating commercial interest in electric frac fleets as operators sought quieter, lower-emission, and more controllable pumping systems. Vibration management is a critical engineering challenge in these deployments: uncontrolled resonance can cause mechanical fatigue, equipment failure, and uneven pressure delivery downhole. The patent’s cancellation by the PTAB, affirmed by the Federal Circuit, was grounded in a finding that the claimed system did not meet the threshold of patentability over prior art.
For the electric fracturing sector, US10934824B2 represented a potential IP barrier in one of the most commercially contested segments of oilfield services. US Well Services — acquired by ProFrac in 2022 — was a pioneer in electric frac technology, and this patent was consistent with its strategy of building an IP moat around fleet management and mechanical performance innovations. The Federal Circuit’s affirmance of unpatentability signals that the specific vibration-reduction claims did not survive scrutiny, which opens design space for competitors. However, the engineering problem the patent addressed remains unsolved at an industry level, meaning new filings in this area are likely from multiple parties.
Should you run an FTO against US10934824B2 and related ProFrac patents?
Any company developing, manufacturing, or operating electric or conventional pressure pumping fleets for hydraulic fracturing should note that US10934824B2 is now cancelled — it cannot be enforced. However, freedom-to-operate clearance on vibration-reduction systems for frac fleets is not complete without examining the broader ProFrac and US Well Services patent family. Continuation applications filed before or after US16/158756 may carry similar claims that survived the PTAB challenge. R&D and product teams building pump fleet management or vibration control systems should treat this cancellation as a starting point, not a conclusion.
PatSnap Eureka’s FTO Search Agent can map the full patent family around US10934824B2, identify any surviving continuations or divisional applications filed by ProFrac or US Well Services, and flag prior art that informed the PTAB’s unpatentability finding — giving your team the same prior art base Halliburton leveraged. Eureka’s landscape analysis can also surface competitive filings from other OFS players in the electric frac vibration-control space, helping you assess residual IP risk before product launch or technology licensing decisions.
Run a freedom-to-operate analysis on US10934824B2 to assess your product’s exposure
Run FTO in Eureka →Similar Federal Circuit PTAB appeals in oilfield services and energy patent cases
Explore Federal Circuit appeals affirming PTAB unpatentability findings in oilfield services, hydraulic fracturing, and pressure pumping equipment technology.
What this case signals for the electric fracturing IP landscape
The Federal Circuit’s affirmance reshapes the patent landscape for electric frac fleet technology and sets a precedent for PTAB challenges in oilfield services.
PTAB remains an effective tool against oilfield services patents
Halliburton’s success in sustaining a PTAB unpatentability finding through Federal Circuit appeal confirms that inter partes review remains a viable, high-probability strategy for large oilfield services incumbents facing blocking patents. Companies holding pressure pumping or electric frac patents should audit claim scope proactively to anticipate prior art exposure.
Electric frac fleet IP is actively contested — monitor closely
The assertion of US10934824B2 by US Well Services and ProFrac signals that electric fracturing technology is a live battleground for IP. Even with this patent cancelled, the commercial value of the underlying technology means further filings, continuations, and cross-assertions between ProFrac, US Well Services, Halliburton, and other OFS players are highly probable.
US v Halliburton — key questions answered
The Federal Circuit affirmed the PTAB’s finding that US10934824B2 is unpatentable. The appeal was filed on 2 November 2023 and decided on 9 June 2025. The affirmance means the patent is permanently cancelled and cannot be enforced by US Well Services or ProFrac against Halliburton or any other party.
US10934824B2 claims a system for reducing vibrations in a pressure pumping fleet used in hydraulic fracturing. It was asserted by US Well Services and ProFrac Holding Corp. against Halliburton. The patent was challenged before the PTAB on patentability grounds and was found unpatentable — a ruling the Federal Circuit subsequently affirmed.
When the Federal Circuit affirms a PTAB unpatentability determination, the patent is cancelled as a matter of U.S. law. The patent holder loses all enforcement rights. The only remaining options are a petition for en banc rehearing or a petition for certiorari to the U.S. Supreme Court — both of which face very high bars for acceptance.
The cancellation provides Halliburton with freedom to operate specifically under US10934824B2. However, full FTO clearance requires analysis of any continuation, divisional, or related applications in the ProFrac and US Well Services portfolio that may contain overlapping claims. Competitors should conduct a comprehensive family search before relying solely on this cancellation for clearance.
US Well Services and ProFrac were represented by Dowd Scheffel PLLC, with attorneys Matthew James Dowd and Robert James Scheffel listed as counsel. Halliburton was represented by Baker Botts LLP, with Chad C. Walters listed as counsel of record at the Federal Circuit.
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