Cedar Lane Technologies v. Empire Asset Management: Dismissed With Prejudice in 11 Days
Cedar Lane Technologies asserted US8577782B2 — a patent covering conditional trading offers for semi-anonymous participants — against Empire Asset Management in the Southern District of New York. The case closed with prejudice just 11 days after filing, before the defendant had answered or moved to dismiss.
A conditional-trading patent suit closed before defendant could respond
On November 14, 2025, Cedar Lane Technologies, Inc. filed suit against Empire Asset Management Company, LLC in the U.S. District Court for the Southern District of New York before Judge John G. Koeltl. The complaint asserted infringement of US8577782B2, a patent directed at conditional trading offers for semi-anonymous participants — technology with direct relevance to electronic trading and financial market platforms.
Just 11 days later, on November 25, 2025, Cedar Lane filed a notice of voluntary dismissal with prejudice pursuant to Federal Rule of Civil Procedure 41(a)(1)(A)(i). Because Empire Asset Management had not yet answered the complaint or filed a motion to dismiss, Cedar Lane was entitled to dismiss as of right under that rule. The with-prejudice designation means Cedar Lane permanently forfeited its right to reassert these specific claims against this defendant.
A lifespan of 11 days is exceptionally short, even by the standards of cases that settle quickly or are filed primarily to initiate licensing discussions. The with-prejudice election — rather than the more common without-prejudice exit — is commercially significant and may suggest a negotiated resolution occurred off the docket, though the public record is silent on any underlying agreement. No fee award was entered, which is typical where defendant has incurred minimal litigation cost.
Filing to Voluntary dismissal in 11 days
11 days from filing to closure — well below the district court median of several years
Dismissed with prejudice: what Rule 41 closure means for both parties
Rule 41(a)(1)(A)(i): plaintiff’s right to dismiss before answer
Under FRCP 41(a)(1)(A)(i), a plaintiff may dismiss an action without a court order by filing a notice before the opposing party serves an answer or a motion for summary judgment. Here, Empire had not yet responded, so Cedar Lane exercised this right unilaterally. The with-prejudice designation is the plaintiff’s own election — the rule itself defaults to without prejudice — and is legally final.
Plaintiff-initiated dismissalWith prejudice bars Cedar Lane from refiling against Empire on this patent
A dismissal with prejudice operates as a final adjudication on the merits. Cedar Lane cannot refile this action or reassert US8577782B2 against Empire Asset Management in any future proceeding. This is a stronger exit than typical early dismissals — which are usually filed without prejudice — and may suggest a private agreement was reached, though the public record does not confirm this.
Permanent claim barEmpire exits litigation permanently without filing a single pleading
Empire Asset Management was never required to answer the complaint, retain litigation counsel of record, or mount a defence. The with-prejudice dismissal means the patent claims against Empire are extinguished. Empire faces no fee exposure. However, the absence of a merits ruling means no invalidity or non-infringement finding was made — the patent itself remains enforceable against other parties.
No merits adjudicationUS8577782B2 remains live — other trading platforms remain at risk
Because the case ended without any invalidity or non-infringement determination, US8577782B2 retains full legal force. Financial technology firms and electronic trading platforms offering conditional or semi-anonymous order mechanisms should note that Cedar Lane’s willingness to assert this patent — and its rapid with-prejudice exit — is consistent with a licensing-focused enforcement strategy. Other targets in the trading technology sector may receive similar actions.
Patent remains enforceableFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Cedar Lane Technologies, Inc. | Company | Financial technology patent licensor — holder of US8577782B2 covering conditional trading offersSearch in Eureka ↗ |
| Defendant | Empire Asset Management Company, LLC | Company | Empire Asset Management Company, LLC — asset management firm named as accused infringerSearch in Eureka ↗ |
| Plaintiff counsel | Isaac Rabicoff | Attorney | Counsel for Cedar Lane Technologies, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Rabicoff Law LLC | Law Firm | Representing Cedar Lane Technologies, Inc.Search in Eureka ↗ |
| Presiding judge | Judge John G. Koeltl | Judge | New York Southern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice invokes Rule 41(a)(1)(A)(i) explicitly, confirming this was a plaintiff-as-of-right exit requiring no judicial approval. The with-prejudice designation is the critical phrase: it converts what is procedurally a unilateral notice into a permanent bar on Cedar Lane reasserting these claims against Empire. No merits findings were made — US8577782B2 was neither invalidated nor found non-infringed — leaving the patent fully enforceable against the broader market.
US8577782B2 — Conditional Trading Offers for Semi-Anonymous Participants
US8577782B2 (application number US12/756929) covers systems and methods for trading with conditional offers among semi-anonymous participants. This patent addresses a mechanism in electronic markets where counterparties can submit offers subject to conditions while preserving partial anonymity — a structural feature relevant to dark pools, conditional order books, and certain OTC marketplace architectures. The patent’s grant date and application history place it squarely in the generation of financial technology IP that emerged alongside the growth of electronic trading infrastructure.
For fintech platforms, matching engine operators, and electronic marketplace providers, US8577782B2 represents a meaningful assertion risk precisely because conditional and semi-anonymous trading mechanisms are now widespread across retail and institutional platforms. Cedar Lane’s willingness to file in SDNY against an asset manager suggests the patent is being actively enforced as a licensing asset. Competitors and adjacent platform operators should map their order-handling architectures against this patent’s claim set before receiving a demand letter.
Should you run an FTO against US8577782B2?
Any company operating an electronic trading platform, marketplace, or order-management system that supports conditional offers or semi-anonymous counterparty matching should treat US8577782B2 as a live FTO concern. The patent survived this case without any validity challenge, and the plaintiff has demonstrated a readiness to file in SDNY — a high-pressure venue for financial sector defendants. Asset managers, broker-dealers, and fintech infrastructure providers are all plausible targets.
PatSnap Eureka’s FTO Search Agent allows R&D and product teams to map platform features against the claim language of US8577782B2 in minutes. Run a structured claim chart comparison against your conditional order logic, identify design-around opportunities before they become litigation pressure, and monitor Cedar Lane Technologies for new filings or portfolio acquisitions — all from a single intelligence platform.
Run a freedom-to-operate analysis on US8577782B2 to assess your product’s exposure
Run FTO in Eureka →Similar conditional trading and fintech patent cases in SDNY
Cases involving financial technology and electronic trading patents in the Southern District of New York, with comparable assertion and early dismissal patterns.
What this case signals for the fintech trading patent IP landscape
An 11-day lifespan and a with-prejudice exit without any public settlement terms raises important questions for fintech platforms and trading technology providers.
With-prejudice voluntary dismissals often signal off-docket resolution
When a plaintiff voluntarily dismisses with prejudice — rather than without — before a defendant has even answered, it typically signals that a private agreement was reached. The public record here is silent, but fintech IP teams should treat this pattern as consistent with a licensing outcome rather than a simple abandonment of claims.
US8577782B2 is still active and enforceable against third parties
No court ruled on validity or infringement. The patent covering conditional trading offers for semi-anonymous participants survives intact. Electronic trading platforms, matching engines, and marketplace operators in similar product spaces should assess their exposure to this patent before Cedar Lane identifies additional targets.
Cedar v Empire — key questions answered
It means Cedar Lane permanently waived its right to sue Empire Asset Management again on US8577782B2. A with-prejudice dismissal under Rule 41(a)(1)(A)(i) operates as a final adjudication on the merits — no court ruling was issued, but Cedar Lane cannot refile this specific claim against this specific defendant. The patent itself remains enforceable against other parties.
No. The case closed after just 11 days via voluntary dismissal before Empire Asset Management filed any response. No merits determination was made. US8577782B2 remains in force and fully enforceable against third parties. Other companies in the electronic trading and fintech space cannot rely on this case as a shield against assertion.
The public record does not state Cedar Lane’s venue rationale. However, SDNY is a jurisdiction with strong ties to the financial services industry, and filing there against an asset manager is consistent with maximising settlement pressure on defendants for whom litigation visibility and reputational risk carry significant weight. SDNY is also a well-resourced federal venue with experienced IP judges.
US8577782B2 (application US12/756929) covers trading systems and methods involving conditional offers for semi-anonymous market participants. The patent addresses mechanisms allowing counterparties to transact under conditions while maintaining partial anonymity — relevant to dark pools, conditional order books, and certain OTC or marketplace platform architectures in electronic trading systems.
Each party bears its own costs, expenses, and attorneys’ fees. This is the standard outcome when a plaintiff dismisses under Rule 41(a)(1)(A)(i) before the defendant has answered, as the defendant has incurred minimal litigation expense. No fee-shifting under 35 U.S.C. § 285 or other exceptional-case standards was invoked or awarded.
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