Televo LLC v. Sony Corp. — Text Entry Patent Case Voluntarily Dismissed
Televo LLC asserted US8521927B2, covering a system and method for text entry, against Sony Corp. in the Eastern District of Texas. The case closed after just 118 days when Televo filed a voluntary dismissal, with each party bearing its own costs.
Televo's text entry patent claim against Sony ends at 118 days
Televo LLC, asserting US8521927B2 — a patent covering a system and method for text entry — filed suit against Sony Corp. in the Eastern District of Texas (Case No. 2:25-cv-01199) on December 9, 2025. The action was brought as a patent infringement claim, with Televo represented by Rabicoff Law LLC and Sony by Lerner David LLP.
The recorded Basis of Termination is 'Voluntary dismissal'. The docket order states that Televo filed a Notice of Voluntary Dismissal With Prejudice and that the Court accepted and acknowledged the notice under Rule 41(a)(1)(A)(i), dismissing all pending claims and causes of action with prejudice. Each party was directed to bear its own costs, expenses, and attorneys' fees.
The case closed on April 6, 2026, just 118 days after filing — before any substantive court proceedings appear to have concluded on the public record. What drove Televo's decision to dismiss at this early stage is not disclosed in the available record, nor are any terms beyond the cost allocation.
See Complete Case & Patent Analysis →Filing to Voluntary dismissal in 118 days
118 days — resolved well before a typical E.D. Texas trial schedule
US8521927B2 — System and Method for Text Entry
Any company developing products with text entry interfaces — including mobile keyboards, gaming controllers with text input, smart TV remotes, or predictive text engines — should assess exposure to US8521927B2. The dismissal of this case against Sony does not constitute a finding of non-infringement, and the patent remains in force. R&D and product teams shipping or updating text-input features should treat this patent as unresolved.
Official order — verbatim text
The court's order accepted Televo's Rule 41(a)(1)(A)(i) notice, closing all pending claims. The order expressly states dismissal is with prejudice and directs each party to bear its own costs — no fee-shifting was ordered. No merits ruling on infringement or validity of US8521927B2 was reached, leaving the patent's enforceability against third parties legally unchanged by this proceeding.
Voluntary dismissal: what the resolution means for both parties
Rule 41 voluntary dismissal — plaintiff's unilateral exit
Under Rule 41(a)(1)(A)(i), a plaintiff may voluntarily dismiss an action before the defendant serves an answer or a motion for summary judgment. The Court accepted Televo's Notice and closed the case. The recorded Basis of Termination is 'Voluntary dismissal'; the docket order states the dismissal is with prejudice. The specific terms beyond cost allocation are not disclosed in the available record.
Rule 41(a)(1)(A)(i)With or without prejudice? What the record shows
The Basis of Termination field records 'Voluntary dismissal' without specifying prejudice character. The docket order, by contrast, states dismissal is with prejudice — meaning Televo could not re-file the same claims against Sony if that order governs. Readers should consult the full docket to confirm the operative effect. The specific terms of any resolution are not otherwise disclosed in the available record.
Prejudice character unspecified in basisTelevo exits without a court ruling on US8521927B2
Televo obtained no damages award, injunction, or merits ruling on US8521927B2. The dismissal means no judicial finding on validity or infringement was made in this proceeding. Televo bears its own litigation costs. Whether the patent retains enforcement value against other parties is unaffected by this dismissal on its face, though the docket order's with-prejudice language limits re-filing against Sony specifically.
No merits ruling on patentSony avoids an infringement finding — but no invalidity ruling either
Sony Corp. secured dismissal without any finding of infringement, and bears its own costs. However, because no merits ruling was entered, there is no judicial invalidity determination that would estop future assertions of US8521927B2 by other plaintiffs or in other proceedings. Sony's freedom-to-operate position relative to this patent's claims remains a matter for independent FTO analysis.
No infringement or invalidity findingFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Televo LLC | Company | /Search in Eureka ↗ |
| Defendant | Sony, Corp. | Company | /Search in Eureka ↗ |
| Plaintiff counsel | Isaac Phillip Rabicoff | Attorney | Counsel for Televo LLCSearch in Eureka ↗ |
| Plaintiff law firm | Rabicoff Law LLC | Law Firm | Representing Televo LLCSearch in Eureka ↗ |
| Defendant counsel | Gregory S. Gewirtz | Attorney | Counsel for Sony, Corp.Search in Eureka ↗ |
| Defendant law firm | Lerner David LLP | Law Firm | Representing Sony, Corp.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
R&D signals in the text entry and input technology space
Patent and R&D intelligence derived from Televo v. Sony — tracking filing trends, portfolio activity, and white space around US8521927B2 and the broader text entry technology domain.
Televo LLC's patent portfolio in text input technology
Televo's assertion of US8521927B2 suggests a focused portfolio around text entry and input methods. Understanding the breadth of Televo's holdings — including continuation patents, related applications, or related assignees — is critical for any consumer electronics or software company assessing assertion risk in this space.
NPE portfolio watchFiling trends in text entry, keyboard, and input interface patents
Text entry remains an active innovation area — spanning soft keyboards, predictive text, swipe input, voice-to-text, and alternative input modalities. Monitoring patent filing trends in this domain helps product teams identify where assertion risk is concentrating and where design-around opportunities exist relative to US8521927B2's claimed methods.
Input tech filing trendsSony's patent posture in text input and user interface
Sony Corp. holds a substantial IP portfolio across consumer electronics, gaming, and display interfaces. Analysing Sony's own patent filings in text entry and input technology reveals both their defensive position relative to assertions like Televo's and potential offensive assets in this space that could inform cross-licensing or design-around strategies.
Sony IP landscapeAdjacent R&D opportunities near US8521927B2 claim space
The claim space around system and method for text entry — particularly as applied to non-traditional input devices like game controllers, smart TV remotes, and AR/VR interfaces — may contain white space where novel solutions can be developed and patented without infringing US8521927B2. Eureka's landscape analysis can surface these gaps for R&D teams.
Innovation white spaceSimilar text entry patent cases in E.D. Texas
Explore related patent infringement actions asserting text entry and user-interface input patents in the Eastern District of Texas, including other NPE enforcement actions against consumer electronics defendants.
What this case signals for the text entry patent IP landscape
Early voluntary dismissals in E.D. Texas frequently signal rapid pre-answer developments that don't appear on the public docket.
Early dismissal pattern: monitor Televo's filing activity across defendants
A voluntary dismissal within 118 days — before any answer or substantive ruling — is consistent with a pattern seen in patent assertion campaigns where early resolution or strategic repositioning occurs. IP teams tracking US8521927B2 should monitor whether Televo files similar actions against other consumer electronics makers.
No invalidity ruling: US8521927B2 remains a live enforcement risk
Because no court ruled on validity or infringement, US8521927B2 has not been weakened judicially. Companies in the text entry technology space — particularly those with keyboard, input method, or predictive text features — should assess whether their products fall within the patent's claims before assuming the dismissal signals low risk.
Televo v Sony — key questions answered
The case was voluntarily dismissed. The recorded Basis of Termination is 'Voluntary dismissal'. The docket order states Televo filed a Notice of Voluntary Dismissal With Prejudice, which the court accepted under Rule 41(a)(1)(A)(i), closing all claims. Each party was directed to bear its own costs. No merits ruling on infringement or validity of US8521927B2 was entered.
Televo LLC asserted US8521927B2, filed under application number US11/774578, covering a system and method for text entry. The case was filed in the Eastern District of Texas. No claim construction or validity ruling was issued before the case was dismissed.
The Basis of Termination field records 'Voluntary dismissal' without specifying prejudice character. The docket order states the dismissal is with prejudice — meaning Televo represented it was dismissing with prejudice and the court accepted that characterisation. Readers should consult the full docket to confirm the operative effect. No further terms are disclosed in the available record.
Televo LLC was represented by Isaac Phillip Rabicoff of Rabicoff Law LLC. Sony Corp. was represented by Gregory S. Gewirtz of Lerner David LLP. The case was filed in the Eastern District of Texas and closed after 118 days.
No judicial ruling on validity or infringement of US8521927B2 was entered in this case. The voluntary dismissal has no precedential effect on the patent's enforceability against other parties. Companies in the text entry technology space should conduct independent freedom-to-operate analysis and should not assume the dismissal signals low assertion risk from this patent.
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