In one of the shortest-lived patent infringement actions filed in 2024, Patent Armory, Inc. voluntarily dismissed its suit against Healthcare Highways, LLC without prejudice just 18 days after filing in the Eastern District of Texas. The case, No. 2:24-cv-00027, was filed on January 19, 2024 and closed February 6, 2024 before Chief Judge Rodney Gilstrap. Patent Armory asserted five U.S. patents covering intelligent call routing and telephony control technologies, targeting Healthcare Highways’s communications infrastructure. The dismissal was entered under Federal Rule of Civil Procedure 41(a)(1)(A)(i), with each party ordered to bear its own costs and attorneys’ fees.

This rapid voluntary dismissal without prejudice is a pattern worth scrutinizing for IP professionals monitoring non-practicing entity (NPE) litigation tactics in the healthcare technology sector. Because the dismissal preserves Patent Armory’s right to re-file the same claims against Healthcare Highways or similarly situated defendants, the asserted patents remain live litigation risks. R&D teams and in-house counsel at healthcare communications companies should treat this outcome not as a resolution, but as a strategic pause — one that may precede a refined assertion campaign targeting call routing and intelligent communication systems.

Case Overview

The Parties

The Patents at Issue

The five asserted patents cover a family of telephony and intelligent communication routing technologies. US7023979B1 and US7269253B1 relate to telephony control systems that intelligently route incoming calls based on caller data, context, or rules-based logic — technologies widely embedded in call center and healthcare communications platforms. US9456086B1 and US10491748B1 extend these concepts into more sophisticated routing and matching systems, while US10237420B1 covers method and system architectures for matching entities in auction-style communication environments. Together, these patents broadly capture automated systems that direct phone calls or communications to the most appropriate recipient based on dynamic criteria.

• • US9456086B1
• • US10491748B1
• • US7269253B1
• • US7023979B1
• • US10237420B1

Legal Representation

Plaintiff Counsel: Rabicoff Law LLC (lead: Isaac Phillip Rabicoff)

Litigation Timeline & Procedural History

This case was filed in the Eastern District of Texas — one of the most plaintiff-favorable venues for patent litigation in the United States and a preferred forum for patent assertion entities. Chief Judge Rodney Gilstrap, who presides over more patent cases than any other federal judge in the country, was assigned to the matter, reflecting the court’s well-established pipeline of NPE-driven infringement actions. The case was categorized as a first-instance infringement action at the district court level, meaning no inter partes review (IPR) or appellate proceedings were on record.

The 18-day duration from filing to closure is exceptionally brief and is entirely explained by the plaintiff’s unilateral voluntary dismissal under FRCP 41(a)(1)(A)(i) — a mechanism available before the defendant serves an answer or a motion for summary judgment. The fact that no defendant agent or law firm was entered on record strongly suggests Healthcare Highways had not yet formally appeared in the case at the time of dismissal. No merits-based findings, claim construction rulings, or damages determinations were made. The basis of termination — voluntary dismissal without prejudice — leaves all five asserted patents fully intact and legally available for future enforcement actions.

The Verdict & Legal Analysis

Outcome

The Court accepted and acknowledged Patent Armory’s Notice of Voluntary Dismissal Without Prejudice filed pursuant to Federal Rule of Civil Procedure 41(a)(1)(A)(i), resulting in all claims being dismissed without prejudice. No damages were awarded, no injunctive relief was granted, and no finding of infringement or validity was made. Each party was ordered to bear its own costs, expenses, and attorneys’ fees, and all pending relief requests were denied as moot.

Verdict Cause Analysis

The dismissal mechanism and its legal implications warrant careful attention for parties monitoring Patent Armory’s assertion activity:

• The voluntary dismissal was filed under FRCP 41(a)(1)(A)(i), which permits a plaintiff to dismiss an action without a court order before the opposing party serves either an answer or a motion for summary judgment — a procedural right exercised here while the defendant had not yet formally appeared.
• Because the dismissal is without prejudice, Patent Armory retains the full right to re-file identical or substantially similar claims against Healthcare Highways, LLC in any competent jurisdiction, subject to applicable statutes of limitations and tolling rules.
• No claim construction, invalidity analysis, or infringement finding was reached, meaning the five asserted patents have not been tested on their merits and retain their presumption of validity under 35 U.S.C. § 282.
• The cost-bearing order — each party responsible for its own fees — is standard for early voluntary dismissals and does not reflect any fee-shifting sanction or exceptional case finding under 35 U.S.C. § 285.

Legal Significance

1. 1. The absence of any merits ruling means all five asserted patents — US9456086B1, US10491748B1, US7269253B1, US7023979B1, and US10237420B1 — remain presumptively valid and enforceable, preserving Patent Armory’s leverage for future assertion against Healthcare Highways or third parties in the healthcare communications sector.
2. 2. The speed of dismissal, combined with no defendant appearance on record, suggests this action may have been filed to initiate licensing negotiations rather than to litigate to judgment — a common NPE tactic where the cost of defense incentivizes early settlement discussions that may have concluded outside court.
3. 3. Companies operating intelligent call routing, IVR, or communication matching systems in healthcare environments should monitor the patent numbers asserted here, as Patent Armory’s portfolio strategy may involve serial assertion across similarly situated defendants in the sector.

Strategic Takeaways

For Patent Attorneys:

• Monitor Patent Armory’s docket for re-filing of these claims against Healthcare Highways or parallel filings against other healthcare communications companies using similar telephony routing infrastructure.
• Assess the validity of all five asserted patents — particularly US7023979B1 and US7269253B1 — through prior art searches and potential IPR petitions, since no court has yet ruled on their merits and early inter partes review can neutralize future assertion risk.
• Document any pre-litigation communications between Patent Armory and your client, as a second filing after a voluntary dismissal without prejudice can, in egregious circumstances, support an exceptional case motion for attorneys’ fees under 35 U.S.C. § 285.
• Advise healthcare technology clients that the Eastern District of Texas remains a high-risk venue for NPE assertions; proactive declaratory judgment strategies or venue transfer preparations should be considered if litigation risk is identified early.

For IP Professionals:

• Add all five Patent Armory patent numbers — US9456086B1, US10491748B1, US7269253B1, US7023979B1, and US10237420B1 — to your IP watch list and monitor for continuation filings, licensing activity, or assignment transfers that could expand the assertion footprint.
• Healthcare companies relying on third-party call routing, IVR, or communication matching vendors should audit their vendor agreements for patent indemnification provisions covering the specific claims asserted in this portfolio.

For R&D Teams:

• Engineering teams building or procuring intelligent call routing, entity matching, or telephony control systems for healthcare applications should commission a freedom-to-operate analysis against these five patents before product deployment or vendor integration.
• Consider design-around strategies for call routing logic that avoids auction-style entity matching and rules-based telephony control architectures specifically claimed in the Patent Armory portfolio, particularly in new product development cycles.