Patent Armory v. Cognizant: Five Call Routing Patents, 76-Day Voluntary Dismissal
Patent Armory, Inc. asserted five US patents covering intelligent communication routing, telephony control, and auction-based entity matching against Cognizant Technology Solutions in E.D. Texas. The plaintiff voluntarily dismissed the action without prejudice just 76 days after filing — before Cognizant filed any responsive pleading.
Pre-answer dismissal in a five-patent telephony enforcement campaign
On November 22, 2024, Patent Armory, Inc. filed suit against Cognizant Technology Solutions U.S. Corporation in the Eastern District of Texas (Case No. 2:24-cv-00971), presided over by Judge Rodney Gilstrap. The complaint asserted five US patents — US9456086B1, US10491748B1, US7269253B1, US7023979B1, and US10237420B1 — covering intelligent communication routing, telephony control systems, and auction-based entity matching methodologies applied in enterprise communications infrastructure.
On February 6, 2025, Patent Armory filed a Notice of Voluntary Dismissal Without Prejudice pursuant to Rule 41(a)(1)(A)(i), a procedural mechanism available before a defendant serves an answer or a motion for summary judgment. Judge Gilstrap accepted and acknowledged the dismissal, closed the case, and denied all pending relief as moot. Because no responsive pleading had been filed by Cognizant, the dismissal was self-executing and required no court approval beyond acknowledgment.
The 76-day lifespan — from filing to closure — suggests the parties may have reached an out-of-court resolution, or that Patent Armory chose to withdraw before incurring the costs of contested litigation. The public record is silent on whether any licensing discussions occurred. Crucially, dismissal without prejudice preserves Patent Armory’s right to re-file claims on the same patents against Cognizant, meaning enforcement risk has not been extinguished.
Filing to Voluntary dismissal in 76 days
76 days — well under median district court patent case duration of 2+ years
Voluntarily dismissed: what the Rule 41 exit means for both parties
Rule 41(a)(1)(A)(i) — self-executing pre-answer dismissal
Under Federal Rule of Civil Procedure 41(a)(1)(A)(i), a plaintiff may dismiss an action without a court order at any time before the defendant serves an answer or a motion for summary judgment. Because Cognizant filed no responsive pleading, Patent Armory’s notice was self-executing. The court’s order functions as acknowledgment, not approval. The dismissal carries no merits adjudication on any of the five asserted patents.
No merits rulingWithout prejudice — but the distinction matters enormously
A dismissal without prejudice means Patent Armory retains the right to re-file suit on the same five patents against Cognizant in the future. This is fundamentally different from a dismissal with prejudice, which would bar re-filing and function as a final adjudication. The verdict text explicitly states ‘without prejudice,’ and the public record confirms this characterisation — the enforcement threat is suspended, not extinguished.
Re-filing risk remainsCognizant escapes this round — but patents remain in play
Cognizant avoided any court-ordered liability, injunction, or damages award on the five asserted patents. Having filed no answer, it also avoided the cost of full litigation. However, because the dismissal is without prejudice, Cognizant cannot claim patent exhaustion or res judicata protection against future assertions of these same patents. Continued exposure to re-filing, particularly if licensing discussions stall, remains a live commercial consideration.
No res judicata shieldEarly exit signals unreported negotiation — or a tactical reset
A sub-90-day patent case in E.D. Texas that ends before any responsive pleading is filed typically signals one of two scenarios: an out-of-court licensing agreement, or a plaintiff recalibrating litigation strategy. Neither can be confirmed from the public record. IT services firms receiving PAE assertions on call routing IP should treat a without-prejudice dismissal as a pause, not a resolution — and use the interval to assess FTO exposure across all five patents.
Monitor for re-filingFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Patent Armory, Inc. | Company | Patent assertion entity — holder of US9456086, US10491748, US7269253, US7023979, US10237420Search in Eureka ↗ |
| Defendant | COGNIZANT TECHNOLOGY SOLUTIONS U.S. CORPORATION | Company | Cognizant Technology Solutions U.S. Corp — global IT services and BPO providerSearch in Eureka ↗ |
| Plaintiff counsel | Isaac Phillip Rabicoff | Attorney | Counsel for Patent Armory, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Rabicoff Law LLC | Law Firm | Representing Patent Armory, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Rodney Gilstrap | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order accepts Patent Armory’s Rule 41(a)(1)(A)(i) notice without substantive comment, confirming the dismissal is procedural rather than merits-based. The phrase ‘dismissed without prejudice’ is unambiguous — no patent was found valid, invalid, infringed, or not infringed. All five asserted patents remain fully enforceable. The denial of pending relief ‘as moot’ confirms no interlocutory orders were outstanding. For Cognizant, there is no estoppel effect; for Patent Armory, all enforcement rights are preserved.
US9456086, US10491748, US7269253, US7023979, US10237420 — Intelligent Call Routing Portfolio
The five asserted patents span two core technical domains: intelligent call and communication routing (US9456086B1, US10491748B1, US7269253B1, US10237420B1) and auction-based entity matching in telephony contexts (US7023979B1). Application dates range from the mid-2000s (US10/385389 and US11/387305) through to more recent continuations (US15/797070 and US15/856729), suggesting a deliberately maintained and extended patent family targeting persistent routing and matching functionality in enterprise communications.
For IT services providers, BPO operators, and enterprise software vendors deploying automatic call distribution, AI-driven routing, or skills-based call matching, this portfolio presents ongoing monitoring obligations. The breadth of the family — spanning both methodology patents and system-level claims — means that design-around strategies must account for multiple independent claim families. The continuation filing strategy suggests Patent Armory, or the original inventors, anticipated long-term commercial relevance of the underlying routing and matching innovations.
Should your call routing platform be cleared against this five-patent portfolio?
Any organisation deploying enterprise telephony infrastructure — including cloud contact centres, ACD platforms, AI-driven skills-based routing, or auction-style lead distribution systems — should assess FTO exposure against this portfolio. The patents cover both system architectures and method claims, meaning software-as-a-service implementations are not automatically excluded. The dismissal without prejudice means these patents remain active and assertable.
PatSnap Eureka’s FTO Search Agent can map your product’s technical architecture against the independent claims of all five patents simultaneously, flagging overlap risks and identifying prior art that could support invalidity arguments. Given the continuation chain spanning applications from 2003 to 2017, Eureka’s claim evolution tracking is particularly relevant for understanding which claim elements have survived prosecution history estoppel.
Run a freedom-to-operate analysis on US9456086B1 to assess your product’s exposure
Run FTO in Eureka →Similar call routing and telephony patent cases in E.D. Texas
Explore related patent infringement actions involving intelligent call routing and telephony control patents litigated in the Eastern District of Texas before Judge Gilstrap.
What this case signals for the enterprise telephony IP landscape
A five-patent PAE assertion against a major IT services firm ending in 76 days without prejudice warrants careful monitoring.
Without-prejudice dismissals are enforcement pauses, not conclusions
Patent Armory retains full rights to reassert all five patents against Cognizant. Companies in the enterprise communications and IT services sector receiving similar notices should treat voluntary dismissals as intervals to conduct FTO analysis, not as cleared threats. Re-filing risk is real, particularly where licensing terms were not publicly disclosed.
E.D. Texas PAE patterns: early dismissal often follows quiet licensing
Judge Gilstrap’s docket is a bellwether for PAE activity. When cases close in under 90 days before any answer is filed, confidential licensing resolutions are a common driver. IT services and BPO firms operating enterprise communications infrastructure should benchmark Patent Armory’s portfolio activity across all five patents for early-warning signals.
Patent v COGNIZANT — key questions answered
Patent Armory, Inc. filed a patent infringement action against Cognizant Technology Solutions U.S. Corporation in the Eastern District of Texas on November 22, 2024, asserting five patents covering intelligent call routing and telephony systems. On February 6, 2025, Patent Armory voluntarily dismissed the case without prejudice under Rule 41(a)(1)(A)(i). No merits ruling was issued and no responsive pleading was filed by Cognizant.
A dismissal without prejudice means Patent Armory retains the legal right to re-file suit against Cognizant on the same five patents in the future. The patents — US9456086B1, US10491748B1, US7269253B1, US7023979B1, and US10237420B1 — remain valid and enforceable. No finding was made as to infringement, validity, or claim scope. Cognizant cannot rely on res judicata or estoppel from this dismissal.
Patent Armory asserted five US patents: US9456086B1 and US10491748B1 (intelligent communication routing systems and methods), US7269253B1 and US10237420B1 (telephony control systems with intelligent call routing), and US7023979B1 (method and system for matching entities in an auction). The products accused include intelligent communication routing systems and telephony control platforms.
The public record does not disclose the reason for the early dismissal. In E.D. Texas patent cases, a voluntary dismissal before any responsive pleading is filed after fewer than 90 days is consistent with confidential licensing discussions, a settlement, or a strategic decision to refile in a different venue or against a different defendant. Neither a license nor a settlement has been publicly confirmed.
Yes. Because Cognizant had not served an answer or motion for summary judgment at the time of dismissal, Patent Armory was entitled to dismiss as of right under Rule 41(a)(1)(A)(i) without court approval. The court’s order is an acknowledgment, not a grant of permission. Importantly, under Rule 41(a)(1)(B), if Patent Armory previously dismissed a case involving the same claims against the same defendant, a second dismissal would operate as a final adjudication on the merits — the so-called two-dismissal rule.
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