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Vanda Pharmaceuticals v. Inventia Healthcare: Iloperidone ANDA Patent Case | PatSnap
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Case ID1:15-cv-00362
FiledMay 2015
ClosedSep 2025
Patent Litigation

Vanda Pharmaceuticals v. Inventia Healthcare: Iloperidone ANDA Settled After 10+ Years

Vanda Pharmaceuticals filed suit in Delaware against Inventia Healthcare over ANDA-based infringement of two iloperidone patents covering FANAPT®. After 3,794 days — over a decade of litigation — the parties resolved the dispute via a consent judgment, permanent injunction, and a separate confidential license agreement.

Resolution time
3794days
3,794 days — over 10 years, well above the median ANDA case duration in Delaware
Patents asserted
1
US8586610B2 and US9138432 — iloperidone oral tablets (FANAPT®), atypical antipsychotic
Outcome
Consent Judgment
Consent judgment with permanent injunction; claims dismissed without prejudice per separate license
Cost ruling
Each Side Bears Own Costs
No fee-shifting; each party bears its own costs and attorneys’ fees per the consent order
Published by PatSnap Insights Team · Verified by PatSnap Eureka Data
Case overview

A decade-long ANDA battle over FANAPT® ends in negotiated consent judgment

Vanda Pharmaceuticals filed this Hatch-Waxman infringement action in May 2015, asserting that Inventia Healthcare’s ANDA No. 207231 — seeking FDA approval to market a generic version of iloperidone tablets across seven dosage strengths — constituted infringement of US Patents 8,586,610 and 9,138,432 under 35 U.S.C. § 271(e)(2). The patents cover formulations and methods relating to iloperidone, Vanda’s branded atypical antipsychotic FANAPT®. Vanda sought a permanent injunction to block Inventia from commercialising its generic product absent a licence.

The case concluded on 23 September 2025 through a consent judgment and permanent injunction entered by Judge Colm F. Connolly. Inventia acknowledged, for settlement purposes only, the validity, enforceability, and infringement of both patents in connection with its ANDA filing. Inventia is permanently enjoined from manufacturing, selling, or importing any generic iloperidone product covered by its ANDA unless acting under a Vanda-granted licence. A separate, confidential licence agreement was executed contemporaneously, suggesting Inventia retains a path to eventual market entry under negotiated terms.

The 3,794-day duration is notably long even for complex ANDA litigation, suggesting the dispute involved extended claim construction, validity challenges, or protracted settlement negotiations. The public record does not disclose the financial or market-access terms of the licence agreement. What remains unknown is whether and when Inventia may launch under that licence, and whether the licence grants a specific entry date — a commercially critical detail that will determine how long Vanda’s branded exclusivity for FANAPT® is effectively preserved.

Case at a glance
Case no.1:15-cv-00362
CourtDelaware
JudgeColm F. Connolly
FiledMay 5, 2015
ClosedSeptember 23, 2025
Duration3794 days
OutcomeConsent Judgment
Verdict causeInfringement Action
BasisConsent Judgment
Prior Art Intelligence
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Case data sourced from PACER / Delaware District Court via PatSnap Eureka Litigation Intelligence Explore similar cases ↗
Case timeline

Filing to Consent Judgment in 3794 days

3,794 days — over 10 years, well above the median ANDA case duration in Delaware

Case timeline: Complaint filed MAY 5 2015, JUL–AUG — 3794 days total Horizontal timeline showing the three key events in Vanda Pharmaceuticals, Inc. v Inventia Healthcare Pvt, Ltd. from filing to resolution. Source: PACER, Delaware District Court. MAY 5 2015 Complaint filed Pre-trial proceedings SEP 23 2025 Consent Judgment 3794 DAYS TOTAL
Settlement terms

Consent judgment and permanent injunction: what the resolution means for both parties

Legal mechanism

Consent judgment: Inventia acknowledges infringement for settlement purposes only

A consent judgment is a court-ordered resolution agreed to by both parties, carrying the same legal force as a litigated judgment. Critically, Inventia’s acknowledgment of validity and infringement is explicitly limited to settlement purposes and does not constitute a binding merits determination. The carve-out language — ‘solely with respect to… Inventia’s ANDA’ — is standard in ANDA consent decrees and limits precedential effect against other generics.

Settled — no merits adjudication
Plaintiff outcome

Vanda secures permanent injunction and licence income without trial risk

Vanda achieved its primary litigation objective: a permanent injunction blocking unlicensed generic iloperidone entry under Inventia’s ANDA. By pairing the injunction with a separate licence agreement, Vanda also likely secured a revenue stream and potentially controls the timing of any Inventia market entry. The settlement eliminates the risk that a full trial could have invalidated the ‘610 or ‘432 patents, which would have exposed Vanda to generic competition from all filers.

Permanent injunction secured
Defendant outcome

Inventia gains a licence pathway but surrenders unlicensed generic entry rights

Inventia avoids a litigated finding of invalidity or infringement, preserving reputational flexibility, but accepts permanent injunctive relief blocking it from launching outside the licence terms. The existence of a separate licence agreement suggests Inventia negotiated a future entry date or royalty arrangement. Claims were dismissed without prejudice, meaning Inventia retains theoretical ability to re-litigate if licence terms are breached, though this is uncommon in practice.

Licensed entry pathway retained
Commercial implications

FANAPT® patent protection reinforced; other ANDA filers face a strengthened precedent

The consent judgment signals that Vanda’s iloperidone patent estate is defensible enough to compel a settlement with permanent injunctive terms after a decade of litigation. Competing ANDA filers for generic iloperidone should treat the ‘610 and ‘432 patents as active enforcement targets. The confidential licence structure is consistent with Vanda’s broader strategy of controlling generic entry timing rather than litigating to invalidation — a model common among specialty pharma patent holders.

Active enforcement posture confirmed
Legal analysis based on PACER docket records for case 1:15-cv-00362 and PatSnap Eureka litigation intelligence Search PatSnap Eureka ↗
Parties and representation

Full party and counsel information

RoleNameTypeDetail
PlaintiffVanda Pharmaceuticals, Inc.CompanySpecialty pharmaceutical company — holder of US8586610 and US9138432 covering iloperidone (FANAPT®)Search in Eureka ↗
DefendantInventia Healthcare Pvt, Ltd.CompanyIndian generic pharmaceutical manufacturer that filed ANDA No. 207231 seeking to market generic iloperidoneSearch in Eureka ↗
Plaintiff counselDaniel J. KleinAttorneyCounsel for Vanda Pharmaceuticals, Inc.Search in Eureka ↗
Plaintiff counselDerek James FahnestockAttorneyCounsel for Vanda Pharmaceuticals, Inc.Search in Eureka ↗
Plaintiff counselEric A. StoneAttorneyCounsel for Vanda Pharmaceuticals, Inc.Search in Eureka ↗
Plaintiff counselEthan Haller TownsendAttorneyCounsel for Vanda Pharmaceuticals, Inc.Search in Eureka ↗
Plaintiff counselJack B. BlumenfeldAttorneyCounsel for Vanda Pharmaceuticals, Inc.Search in Eureka ↗
Plaintiff counselJosephine YoungAttorneyCounsel for Vanda Pharmaceuticals, Inc.Search in Eureka ↗
Plaintiff counselKaren JacobsAttorneyCounsel for Vanda Pharmaceuticals, Inc.Search in Eureka ↗
Plaintiff counselKira A. DavisAttorneyCounsel for Vanda Pharmaceuticals, Inc.Search in Eureka ↗
Plaintiff counselNicholas GroombridgeAttorneyCounsel for Vanda Pharmaceuticals, Inc.Search in Eureka ↗
Plaintiff law firmMcDermott Will & Schulte LLPLaw FirmRepresenting Vanda Pharmaceuticals, Inc.Search in Eureka ↗
Plaintiff law firmMorris, Nichols, Arsht & Tunnell LLPLaw FirmRepresenting Vanda Pharmaceuticals, Inc.Search in Eureka ↗
Defendant counselChristine A. DudzikAttorneyCounsel for Inventia Healthcare Pvt, Ltd.Search in Eureka ↗
Defendant counselConstantine J. KoutsoubasAttorneyCounsel for Inventia Healthcare Pvt, Ltd.Search in Eureka ↗
Defendant counselDouglass C. HochstetlerAttorneyCounsel for Inventia Healthcare Pvt, Ltd.Search in Eureka ↗
Defendant counselMark J. ScottAttorneyCounsel for Inventia Healthcare Pvt, Ltd.Search in Eureka ↗
Defendant counselMary MattererAttorneyCounsel for Inventia Healthcare Pvt, Ltd.Search in Eureka ↗
Defendant counselSarita M. MathesonAttorneyCounsel for Inventia Healthcare Pvt, Ltd.Search in Eureka ↗
Presiding judgeJudge Colm F. ConnollyJudgeDelaware District CourtSearch in Eureka ↗
Official verdict

Official order — verbatim text

“This matter is before the Court on the unopposed motion of Plaintiff Vanda Pharmaceuticals Inc.("V anda") and Defendant Inventia Healthcare Ltd. ("Inventia"). WHEREAS, Vanda owns United States Patent Nos. 8,586,610 ("the ‘610 patent") and 9,138,432 ("the ‘432 patent"). WHEREAS, Inventia submitted Abbreviated New Drug Application No. 207231 ("Inventia’s ANDA") to the FDA under 21 U.S.C. § 355G) seeking to obtain approval to commercially manufacture and sell generic iloperidone. WHEREAS, in these Actions, Vanda alleges that Inventia infringed one or more claims of the ‘610 patent and claim 1 of the ‘432 patent under 35 U.S.C. § 271(e)(2) by virtue oflnventia’s submission oflnventia’s ANDA to the FDA. Case 1:15-cv-00362-CFC Document 233 Filed 09/23/25 Page 1 of 4 PageID #: 1303 WHEREAS, in these Actions, Vanda alleges that it would be irreparably harmed if Inventia were not enjoined from infringing or actively inducing or contributing to infringement of one or more claims of the ‘610 patent and claim 1 of the ‘432 patent. WHEREAS, in these Actions, Vanda requested that this Court enter a permanent injunction enjoining Inventia from infringing the ‘610 and ‘432 patents. WHEREAS, in these Actions, Inventia has denied that the ‘610 patent and the ‘432 patent are valid, enforceable and infringed by the product described in Inventia’s ANDA. WHEREAS, Vanda and Inventia have reached an agreement to finally settle the Litigation as set forth in this Consent Judgment and Permanent Injunction as to Inventia and a separate License Agreement ("License Agreement"), which is contemporaneously and separately being executed. WHEREAS, final settlement of these Actions will help Vanda and Inventia avoid the substantial uncertainty and risks involved with prolonged litigation. WHEREAS, final settlement of these Actions will permit Vanda and Inventia to save litigation costs, as well as adhere to the judicially recognized mandate that encourages the settlement of litigation whenever possible. WHEREAS, final settlement of the Action serves the public interest by saving judicial resources and avoiding the risks to each of Vanda and Inventia associated with infringement. IT IS HEREBY ORDERED, DECREED, and ADJUDGED as follows: 1. The Court has jurisdiction over Vanda and Inventia and the subject matter of this Litigation. 2. Inventia acknowledges Vanda’s ownership and standing to sue for infringement of United States Patent Nos. 8,586,610 ("the ‘610 patent") and 9,138,432 ("the ‘432 patent"). 2 Case 1:15-cv-00362-CFC Document 233 Filed 09/23/25 Page 2 of 4 PageID #: 1304 3. Inventia acknowledges that in connection with, and for purposes of the settlement of, these Actions only, the ‘610 and ‘432 patents are valid and enforceable solely with respect to the generic iloperidone products that are the subject to Inventia’s ANDA, as described more fully and subject to the restrictions contained in the License Agreement. 4. Inventia acknowledges that in connection with, and for the purposes of the settlement of, these Actions only, it has infringed the ‘610 and ‘432 patents under 35 U.S.C. § 271(e)(2) with respect to the filing of Inventia’s ANDA with the FDA and that Vanda did not authorize the commercial manufacture, use, sale, offer for sale and importation of the product described in Inventia’s ANDA. 5. Inventia and its successors, assigns and affiliates are permanently enjoined as of the date hereof from infringing the ‘610 and ‘432 patents by the commercial manufacture, use, offer to sell, sale or importation of any generic iloperidone products that are the subject of Inventia’s ANDA that is not pursuant to a license granted by Vanda or otherwise exempt from infringement under 35 U.S.C. § 271(e)(l), and from inducing others to infringe or contributing to the infringement of the ‘610 and ‘432 patents by inducing others to manufacture, use, offer to sell, sale or import, or contributing to others’ manufacture, use, offer for sale, sale or importation of any generic iloperidone products that are the subject of Inventia’s ANDA that is not pursuant to a license granted by Vanda or otherwise exempt under 35 U.S.C. § 271(e)(l). 6. All claims and counterclaims in these Actions are hereby dismissed without prejudice. 7. Each party shall bear its own costs and attorneys’ fees.”
Source: PACER Docket, Case 1:15-cv-00362, Delaware District Court

The consent judgment’s validity acknowledgment is explicitly cabined to settlement purposes and to Inventia’s specific ANDA, consistent with standard Hatch-Waxman practice. This scoping language means the order cannot be cited as a merits determination of validity or infringement against other generic defendants. The permanent injunction, however, is unconditional absent a Vanda-granted licence, giving Vanda durable enforcement leverage. The without-prejudice dismissal of all claims and counterclaims preserves procedural flexibility for both parties should the separate licence agreement later be disputed.

PACER case 1:15-cv-00362 · Public docket record Explore in Eureka ↗
Patent at issue

US8586610B2 — Iloperidone formulation patents covering FANAPT® oral tablets

Publication No.US8586610B2
Application No.US11/576178
Patent details
ProductIloperidone oral tablet formulations for atypical antipsychotic treatment
Cited in actionMay 5, 2015

US Patent 8,586,610 (application number US11/576,178) covers iloperidone formulations underlying Vanda’s branded FANAPT® tablets, an atypical antipsychotic approved for the treatment of schizophrenia. The co-asserted US9,138,432 patent covers related compositions or methods of use. Both patents were asserted under the Hatch-Waxman framework, which deems ANDA filing an act of constructive infringement, enabling brand manufacturers to litigate before any infringing product reaches market. The application filing history suggests these are continuation-family assets designed to maintain layered exclusivity over the iloperidone franchise.

For competitors in the CNS generic pharmaceutical space, the ‘610 and ‘432 patents represent active enforcement risk for any entity holding or seeking an ANDA for iloperidone products. The consent judgment’s outcome — permanent injunction plus undisclosed licence — confirms Vanda’s willingness to litigate to resolution rather than accept early abandonment. Companies developing branded or generic atypical antipsychotics with overlapping formulation claims should conduct freedom-to-operate analysis against this patent family before progressing development candidates to ANDA stage.

Patent data sourced from USPTO via PatSnap Eureka patent database Search patent records in Eureka ↗
Freedom to operate

Should you run an FTO analysis against US8586610 and US9138432?

Any pharmaceutical company — branded or generic — developing oral iloperidone formulations or closely related atypical antipsychotic tablet compositions should treat the ‘610 and ‘432 patent family as a live FTO concern. This case demonstrates that Vanda actively enforces these patents through Hatch-Waxman litigation and is prepared to pursue proceedings for over a decade. ANDA filers, CMOs, and distributors planning to handle iloperidone products in the US market should confirm their activities fall within the § 271(e)(1) safe harbour or within the scope of an existing Vanda licence.

PatSnap Eureka’s FTO Search Agent enables IP teams to map claim scope against US8586610 and US9138432, identify related continuations and divisionals in Vanda’s iloperidone patent family, and surface prior art that may support a paragraph IV challenge or IPR petition. Eureka’s litigation overlay connects patent claim analysis directly to enforcement history, letting you assess how aggressively Vanda has defended these assets across multiple ANDA defendants — essential intelligence before committing to a generic development programme.

PatSnap Eureka FTO Search

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Related litigation

Similar ANDA iloperidone and atypical antipsychotic patent cases

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Strategic implications

What this case signals for the ANDA pharmaceutical IP landscape

A decade-long iloperidone dispute resolved via consent judgment reveals important patterns in specialty pharma patent enforcement strategy.

Permanent injunction plus licence is the dominant ANDA settlement architecture

Vanda’s resolution structure — injunction combined with a separate licence agreement — is the standard playbook for branded pharma holders seeking to monetise patents while controlling generic entry timing. Generic filers facing similar ANDA suits should model early settlement scenarios against the cost and uncertainty of full trial, particularly where validity is contestable.

10+ year ANDA durations signal escalating complexity in small-molecule pharma IP

This case’s 3,794-day span is a commercial signal: Delaware ANDA cases involving atypical antipsychotics with multiple patent claims are resource-intensive. R&D teams developing generic equivalents to CNS drugs should build extended litigation timelines into market-entry financial models, and not assume early resolution.

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Licence entry date signalsOther ANDA filer exposureCNS patent enforcement trends
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Frequently asked questions

Vanda v Inventia — key questions answered

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Monitor Vanda’s iloperidone patent family for new filings, continuations, and enforcement actions. PatSnap Eureka’s FTO Search Agent maps claim scope against US8586610 to assess your generic development programme’s exposure before ANDA submission.

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