RecepTrexx v. TalkDesk: Patent Infringement Action Dismissed With Prejudice
RecepTrexx, LLC asserted reissue patent USRE042997E — covering triggered playback of recorded messages to incoming cellular calls — against cloud contact-centre provider TalkDesk, Inc. in Delaware. The case closed in just 93 days after RecepTrexx voluntarily dismissed all claims with prejudice under Rule 41(a)(1)(A)(i), with each party bearing its own costs.
A swift exit: reissue patent suit ends before TalkDesk responds
On 5 February 2024, RecepTrexx, LLC filed suit against TalkDesk, Inc. in the District of Delaware before Judge Jennifer L. Hall, asserting infringement of reissue patent USRE042997E. The patent covers the triggered playback of recorded messages to incoming telephone calls directed to a cellular phone — technology relevant to automated call-handling and contact-centre platforms of the type TalkDesk provides.
The case closed on 8 May 2024 — just 93 days after filing — when RecepTrexx filed a notice of voluntary dismissal with prejudice under Federal Rule of Civil Procedure 41(a)(1)(A)(i). The dismissal was self-executing, requiring no court order. Critically, the ‘with prejudice’ designation means RecepTrexx is permanently barred from reasserting the same patent claims against TalkDesk on the same accused conduct. The parties agreed to bear their own costs, expenses, and attorneys’ fees.
The speed of resolution — under three months, with no defendant agent or law firm on record — suggests TalkDesk may not have formally appeared before the dismissal was filed. The public record does not disclose whether the parties reached any commercial arrangement, licence, or settlement before dismissal; the filing is silent on the underlying rationale. The with-prejudice nature of the exit, however, is unambiguous: this specific dispute is permanently closed.
Filing to Voluntary dismissal in 93 days
93 days — resolved well under the median district court patent case timeline
Dismissed with prejudice: what Rule 41(a)(1)(A)(i) means for both parties
Rule 41(a)(1)(A)(i) dismissal — self-executing, no court order needed
A Rule 41(a)(1)(A)(i) notice may be filed unilaterally by the plaintiff before the defendant serves an answer or a motion for summary judgment. It takes effect immediately on filing. Here, the ‘with prejudice’ designation — which plaintiffs may voluntarily impose on themselves — elevates the procedural exit into a substantive bar. The claims are extinguished as a matter of res judicata.
Permanent claim barRecepTrexx is permanently barred from re-suing TalkDesk on USRE042997E
By choosing ‘with prejudice’, RecepTrexx gave up more than a typical voluntary dismissal. It cannot re-file against TalkDesk for the same accused conduct under USRE042997E. The patent itself remains in force for third parties, but TalkDesk has effectively received a permanent release from this specific assertion. The public record gives no indication of any licence payment or royalty arrangement.
TalkDesk effectively releasedTalkDesk exits with no liability and no fee award — but no formal vindication
TalkDesk secured the strongest possible exit short of a defence verdict: the claims are gone with prejudice and no costs were imposed on it. No defendant counsel appears on the docket, suggesting TalkDesk may not have formally appeared. The absence of a fee award under 35 U.S.C. § 285 means TalkDesk did not pursue — or could not yet pursue — an ‘exceptional case’ finding, which typically requires more litigation history.
No liability, no fee awardUSRE042997E remains live against other contact-centre competitors
The dismissal resolves only the TalkDesk dispute. USRE042997E continues to exist and could be asserted against other vendors offering triggered or automated message playback to incoming cellular calls. Contact-centre, CPaaS, and UCaaS providers operating in this space should monitor the patent’s status and any parallel assertions RecepTrexx may pursue. The reissue designation suggests the patent was already broadened once post-grant.
Patent still live for third partiesFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | RecepTrexx, LLC | Company | Patent assertion entity — holder of USRE042997E covering cellular call triggered message playbackSearch in Eureka ↗ |
| Defendant | TalkDesk, Inc. | Company | TalkDesk, Inc. — cloud-based contact-centre software and AI platform providerSearch in Eureka ↗ |
| Plaintiff counsel | Antranig N. Garibian | Attorney | Counsel for RecepTrexx, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Garibian Law Offices, PC | Law Firm | Representing RecepTrexx, LLCSearch in Eureka ↗ |
| Presiding judge | Judge Jennifer L. Hall | Judge | Delaware District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice tracks the exact statutory language of Rule 41(a)(1)(A)(i) and adds the with-prejudice qualifier voluntarily. That combination is legally significant: the self-executing nature of the notice means no judicial approval was required, yet the with-prejudice election gives it the finality of a merits judgment for preclusion purposes. The cost-bearing clause — each side absorbs its own fees — forecloses any subsequent § 285 fee motion by TalkDesk arising from this action. No merits finding was made on validity or infringement.
USRE042997E — Triggered Playback of Recorded Messages to Cellular Calls
USRE042997E is a United States reissue patent, meaning it originated as a standard utility patent and was subsequently reissued by the USPTO — a process that allows the patentee to correct errors or, within certain statutory bounds, broaden or narrow claim scope. The corrected application number US12/001974 places its original filing in the 2007–2008 timeframe. The technology domain covers automated message playback triggered by incoming telephone calls to cellular devices — a foundational element of modern IVR, voicebot, and contact-centre call-routing systems.
For cloud contact-centre providers, the reissued claim set of USRE042997E is commercially sensitive because triggered message playback sits at the core of automated call-handling workflows. Any platform that intercepts an inbound cellular call and plays back a pre-recorded or dynamically generated message — for queue management, authentication, or routing — could potentially fall within the patent’s scope depending on claim construction. The reissue designation is a signal that the original claims were refined deliberately, which tends to make clearance analysis more complex.
Should your contact-centre product team run an FTO on USRE042997E?
Any vendor developing or licensing IVR systems, voicebot platforms, CPaaS APIs, or cloud contact-centre software that handles triggered playback of recorded messages to inbound cellular calls should treat USRE042997E as a live risk. The patent has already been asserted in federal court. The with-prejudice dismissal against TalkDesk does not extinguish the patent — it remains enforceable and RecepTrexx retains the ability to target other parties. R&D and product teams launching or updating automated call-handling features should commission an FTO before general availability.
PatSnap Eureka’s FTO Search Agent enables IP and product teams to map specific product features against the claim language of USRE042997E, identifying overlap zones and viable design-around paths. The tool cross-references reissue prosecution history, prior art citations, and related family members to give a complete picture of enforceability risk — significantly faster than a traditional manual FTO. For companies operating at scale in the contact-centre or CPaaS market, this analysis should be part of any pre-launch IP clearance protocol.
Run a freedom-to-operate analysis on USRE042997E to assess your product’s exposure
Run FTO in Eureka →Related patent cases: reissue patents and contact-centre technology disputes
Explore patent infringement cases in the contact-centre and cellular telephony space filed in Delaware and comparable jurisdictions, with reissue patent assertions and triggered call-handling technology at issue.
What this case signals for the contact-centre IP landscape
A rapid with-prejudice exit in Delaware suggests real exposure calculus — or a quiet resolution. Here is what IP teams should take away.
Reissue patents in the telephony space carry elevated enforcement risk
USRE042997E is a reissue patent, meaning the claims were already revisited and potentially broadened after original grant. Reissue patents can be harder to design around because the amended claims reflect deliberate post-grant refinement. Contact-centre and CPaaS vendors handling triggered call-handling workflows should audit their architecture against the reissued claim set, not just the original patent.
A with-prejudice dismissal in 93 days warrants closer scrutiny than it first appears
Most voluntary dismissals this fast — before any defendant appearance — reflect either a pre-suit licensing deal that made litigation unnecessary, a decision by the plaintiff that the case lacked merit, or a post-filing commercial resolution. The with-prejudice election is unusual in a unilateral filing: plaintiffs who expect to refile typically dismiss without prejudice. The choice here suggests finality was intentional.
RecepTrexx v TalkDesk — key questions answered
A with-prejudice dismissal permanently bars RecepTrexx from re-filing the same patent infringement claims against TalkDesk under USRE042997E. Filed under Rule 41(a)(1)(A)(i), the notice was self-executing and required no court order. It has the preclusive effect of a final judgment on the merits for purposes of res judicata, even though no court ruled on validity or infringement.
Yes. The dismissal resolved only the dispute between RecepTrexx and TalkDesk. USRE042997E remains an issued, in-force reissue patent. RecepTrexx retains the right to assert it against other parties. Companies in the contact-centre, CPaaS, or IVR space whose products involve triggered playback of recorded messages to incoming cellular calls should treat the patent as an active risk.
The public record does not disclose the reason. However, a with-prejudice election under Rule 41(a)(1)(A)(i) is unusual in a unilateral pre-answer dismissal: plaintiffs who anticipate refiling typically use without-prejudice. The choice may suggest a private resolution — such as a licence or payment — or a plaintiff determination that this specific defendant was not worth continued pursuit. No commercial terms were disclosed.
The case was filed in the United States District Court for the District of Delaware, Case No. 1:24-cv-00145, assigned to Judge Jennifer L. Hall. Delaware is a common venue for patent litigation due to its established case law and familiarity with complex IP matters.
USRE042997E covers the triggered playback of recorded messages to incoming telephone calls directed to a cellular phone. It is a reissue of an original patent filed around 2007–2008 (corrected application US12/001974). The reissue process allows claim refinement post-grant, making the reissued claims potentially broader or more precisely targeted than the original. The technology is foundational to IVR, automated voicebot, and contact-centre call-routing systems.
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