PTO Solutions v. C&K Manufacturing: Infringement Suit Dismissed With Prejudice in 160 Days
PTO Solutions, LLC sued C&K Manufacturing, Inc. in the Southern District of Texas alleging infringement of US11313417B2, a patent covering PTO adapter technology. The case was dismissed with prejudice after just 160 days — a notably swift resolution — following court orders referenced in Docket entries 43–47.
Swift dismissal with prejudice ends PTO adapter infringement dispute
On December 11, 2024, PTO Solutions, LLC filed suit against C&K Manufacturing, Inc. in the U.S. District Court for the Southern District of Texas (Houston Division) before Judge Charles Eskridge. The complaint asserted infringement of US11313417B2, a patent directed to power take-off (PTO) adapter technology. The accused products include C&K’s PTO Connect Modified Adapter, Standard Adapter, Standard Easy Max Adapter, and Universal Adapter — a broad product line spanning PTO coupling applications.
The case was terminated on May 20, 2025, by a final judgment dismissing the action with prejudice. The court’s order explicitly references Docket entries 43–47, which include the operative Minute Entry and related orders. A dismissal with prejudice constitutes an adjudication on the merits for res judicata purposes — PTO Solutions is barred from re-asserting the same patent claims against C&K Manufacturing arising from the same accused products in any future federal proceeding.
The 160-day duration is notably short for a patent infringement action, suggesting the dismissal likely arose from a court-ordered ruling rather than an extended merits trial. The specific reasoning is contained in the sealed or filed court orders at Dkts 43–47, which are not fully reproduced in the public docket summary. Whether the outcome reflects a sanctions order, a dispositive ruling on claim construction or standing, or a negotiated resolution presented as a court order remains unclear from the public record alone.
Filing to Dismissed with Prejudice in 160 days
160 days — faster than the median patent case lifespan in S.D. Texas
Dismissed with prejudice: what the final judgment means for both parties
Dismissal with prejudice operates as a merits adjudication
Under federal civil procedure, a dismissal with prejudice is treated as a final judgment on the merits. Unlike a voluntary dismissal without prejudice, this ruling extinguishes the plaintiff’s right to refile the same claims. The court’s reference to Dkts 43–47 suggests the dismissal followed substantive orders — potentially a sanctions ruling, a standing determination, or a dispositive motion — rather than a simple voluntary withdrawal.
Res judicata bar appliesPTO Solutions loses the right to re-assert US11313417B2 against C&K
A with-prejudice dismissal is an adverse outcome for PTO Solutions. The company cannot refile these infringement claims against C&K Manufacturing on the same patent and accused products in federal court. The patent itself remains enforceable against other parties, but enforcement against C&K is foreclosed. If the dismissal stemmed from a substantive deficiency — such as a standing issue or claim construction loss — it may signal broader vulnerability in PTO Solutions’ enforcement strategy.
Claims against C&K extinguishedC&K Manufacturing receives durable protection from this infringement claim
For C&K Manufacturing, the with-prejudice dismissal provides strong legal protection. The accused PTO Connect product line — including the Modified, Standard, Standard Easy Max, and Universal adapters — cannot be the subject of a renewed infringement suit by PTO Solutions on US11313417B2. C&K may also be positioned to seek attorney fees if the court’s unreferenced orders support an exceptional-case finding under 35 U.S.C. § 285, though no fee award is apparent from the public record.
Accused products cleared in this actionPTO adapter market: patent enforcement risk persists for other competitors
US11313417B2 remains a live patent and could be asserted against other manufacturers of PTO coupling and adapter products. The swift dismissal in this case does not invalidate the patent — it only bars PTO Solutions from pursuing C&K. Competitors in the agricultural and industrial PTO adapter space should treat this patent as an active enforcement risk and consider freedom-to-operate analysis before launching similar adapter configurations.
Patent remains enforceable vs. othersFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | PTO Solutions, LLC | Company | PTO adapter IP licensor — holder of US11313417B2 covering PTO coupling systemsSearch in Eureka ↗ |
| Defendant | C&K Manufacturing, Inc. | Company | C&K Manufacturing, Inc. — manufacturer of PTO Connect adapter product lineSearch in Eureka ↗ |
| Plaintiff counsel | Jesus David Cabello | Attorney | Counsel for PTO Solutions, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Cabello Hall Zinda PLLC | Law Firm | Representing PTO Solutions, LLCSearch in Eureka ↗ |
| Presiding judge | Judge Charles Eskridge | Judge | Texas Southern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s final judgment uses mandatory language — ‘DISMISSED WITH PREJUDICE’ and ‘FINAL JUDGMENT’ — signaling an unconditional termination rather than a conditional or consent-based resolution. By expressly incorporating Dkts 43–47 by reference, the order indicates that substantive findings preceded the dismissal. This structure is consistent with a court-initiated dispositive ruling, though it does not exclude a structured settlement memorialised through court order. The with-prejudice designation forecloses any future federal action by PTO Solutions against C&K on these claims and accused products.
US11313417B2 — Power take-off adapter coupling technology
US11313417B2, filed under Application No. 16/933,682, protects innovations in power take-off adapter technology — mechanical coupling systems used to transfer rotational power from a vehicle or tractor drivetrain to attached implements. PTO adapters are critical components in agricultural, construction, and industrial equipment, where drivetrain compatibility across different shaft standards determines product interoperability. The patent’s claims as granted cover specific adapter configurations asserted against C&K’s Modified, Standard, Standard Easy Max, and Universal adapter products.
In a fragmented market where multiple manufacturers produce PTO coupling adapters across competing shaft standards, a granted utility patent covering adapter architecture carries meaningful exclusivity potential. US11313417B2 gives PTO Solutions a legal basis to challenge competing adapter designs that fall within its claim scope. For the broader PTO drivetrain component sector — including agricultural OEMs, aftermarket parts suppliers, and industrial drivetrain manufacturers — this patent represents an active enforcement asset that warrants monitoring, even following the dismissal of this specific action against C&K.
Should you run an FTO analysis against US11313417B2?
Any manufacturer, distributor, or OEM operating in the power take-off adapter or PTO coupling market should treat US11313417B2 as an active risk patent. The dismissal of the C&K action did not invalidate the patent or narrow its claims — it simply ended enforcement against one defendant. If your product line includes PTO shaft adapters, universal coupling adapters, or similar drivetrain interface components, your design may fall within the asserted claim scope and warrant a formal freedom-to-operate review before scaling production or entering new markets.
PatSnap Eureka’s FTO Search Agent can map the claim language of US11313417B2 against your specific product configurations, identify prior art that could support an invalidity defence, and surface related patents in the PTO adapter space that may pose additional risk. Eureka’s prosecution history analysis also helps identify claim amendments that may narrow or extend the enforceability of this patent — a critical input for engineering design-around strategies in the PTO coupling sector.
Run a freedom-to-operate analysis on US11313417B2 to assess your product’s exposure
Run FTO in Eureka →Similar PTO adapter and mechanical coupling patent cases in federal courts
Explore comparable patent infringement actions involving power take-off and mechanical coupling technology filed in Texas federal district courts.
What this case signals for the PTO adapter and power drivetrain IP landscape
A swift with-prejudice dismissal in S.D. Texas raises pointed questions about litigation readiness and patent enforcement strategy in the PTO adapter sector.
With-prejudice dismissals in under six months often signal a threshold defect
When a patent case closes with prejudice in 160 days without proceeding to claim construction or trial, it typically signals a foundational issue — standing, pleading adequacy, or a sanctions-level problem. Competitors monitoring PTO Solutions’ enforcement posture should review the referenced Dkts 43–47 for substantive reasoning once publicly accessible.
US11313417B2 remains live — other PTO adapter manufacturers remain at risk
The dismissal is defendant-specific. PTO Solutions retains the right to assert US11313417B2 against any other manufacturer of power take-off adapter products. Companies with similar coupling system designs should conduct proactive FTO analysis before market launch or product expansion.
PTO v C&K — key questions answered
In case 4:24-cv-04864, the Southern District of Texas entered a final judgment dismissing all claims with prejudice. This means the dismissal operates as a merits adjudication — PTO Solutions is permanently barred from re-filing the same patent infringement claims against C&K Manufacturing based on US11313417B2 and the accused PTO Connect adapter products in federal court.
PTO Solutions asserted US11313417B2, filed as Application No. 16/933,682. The patent covers power take-off adapter and coupling technology. The accused products were C&K’s PTO Connect Modified Adapter, Standard Adapter, Standard Easy Max Adapter, and Universal Adapter.
The 160-day duration from filing to final judgment suggests the dismissal arose from a substantive threshold issue rather than a full merits trial. The court’s order references Dkts 43–47, which contain the operative findings. Common causes of swift with-prejudice dismissals include standing deficiencies, sanctions orders, or successful dispositive motions — though the specific basis is not fully disclosed in the public docket summary.
Yes. A dismissal with prejudice in one case does not invalidate the patent. US11313417B2 remains a granted U.S. patent and can be asserted by PTO Solutions against other manufacturers of PTO adapter products. Only enforcement specifically against C&K Manufacturing on these accused products is foreclosed by this judgment.
PTO Solutions was represented by attorney Jesus David Cabello of Cabello Hall Zinda PLLC. No defendant law firm or counsel is identified in the public case record, which may suggest C&K Manufacturing appeared pro se at some stage or that defense representation was not captured in the available docket data.
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