Book a demo

Cut patent&paper research from weeks to hours with PatSnap Eureka AI!

Try now
Boehringer Ingelheim v. Cronus Pharma | Pimobendan Patent Litigation | PatSnap
Patent Litigation

Boehringer Ingelheim v. Cronus Pharma: Consent Judgment & Permanent Injunction

Boehringer Ingelheim's animal health entities filed a patent infringement action against Cronus Pharma over three U.S. patents covering pimobendan veterinary pharmaceutical compositions and packaging. The case resolved in 300 days with a court-entered consent judgment and a permanent injunction barring Cronus from commercialising its ANADA-approved pimobendan products until the asserted patents expire.

Resolution time
300days
Case resolved in 300 days — well under the median ANDA/ANADA pharmaceutical patent dispute timeline
Patents asserted
3
US8846679, US8846680 & US8859554 — pimobendan pharmaceutical compositions and packaging assemblies
Outcome
Consent Judgment
Agreed by the parties, entered by the court — binding, final, and carries a permanent injunction
Cost ruling
No Costs Awarded
Consent judgment specifies no costs, disbursements, or attorneys' fees to any party
Published by PatSnap Insights Team · Verified by PatSnap Eureka Data
Case overview

Pimobendan ANADA dispute ends with permanent injunction against Cronus

Boehringer Ingelheim Animal Health USA, Inc. and Boehringer Ingelheim Vetmedica GmbH (collectively, Boehringer) filed suit on 28 September 2022 in the District of New Jersey against Cronus Pharma LLC and Cronus Pharma Specialties India Pvt. Ltd. (collectively, Cronus), asserting infringement of U.S. Patent Nos. 8,846,679, 8,846,680, and 8,859,554. The patents relate to pimobendan pharmaceutical compositions and packaging assemblies. The trigger was Cronus's Abbreviated New Animal Drug Application No. 200-728, which sought FDA approval to market a competing pimobendan product.

The case closed on 25 July 2023 via a consent judgment and order of permanent injunction — the recorded basis of termination. Under the court-entered order, Cronus acknowledged the three asserted patents as valid and enforceable. Cronus and its affiliates are permanently enjoined from making, using, selling, offering to sell, importing, or distributing the Cronus ANADA products without Boehringer's authorisation, through the expiration of the asserted patents including any patent term extension or adjustment. The court retained jurisdiction to enforce or supervise compliance. The underlying complaint and all remaining claims were dismissed without prejudice and without costs to any party.

Resolution in 300 days — before any substantive motion practice reached a ruling — suggests both parties concluded that litigation risk and cost outweighed a contested fight over validity and infringement. Cronus's agreement that the patents are valid and enforceable, and its acceptance of a permanent injunction tied to patent expiry, represents a commercially significant concession. The specific terms that may have informed the agreed resolution beyond what appears in the public court order are not disclosed in the available record.

See Complete Case & Patent Analysis →
Case at a glance
CourtNew Jersey District Court
JudgeN/A
FiledSeptember 28, 2022
ClosedJuly 25, 2023
Duration300 days
OutcomeConsent Judgment
Verdict causeInfringement Action
BasisConsent Judgment
Prior Art Intelligence
See what prior art exists on this patent.
Eureka scans millions of patents and papers to surface prior art that may have invalidated these claims before costly litigation begins.
Check Prior Art
Case data sourced from PACER / New Jersey District Court via PatSnap Eureka Litigation Intelligence Explore similar cases ↗
Case timeline

Filing to Consent Judgment in 300 days

Case resolved in 300 days — well under the median ANDA/ANADA pharmaceutical patent dispute timeline

Case timeline: Complaint filed SEP 28 2022 — 300 days total Horizontal timeline showing the three key events in Boehringer Ingelheim Animal Health USA, Inc. v Cronus Pharma, LLC from filing to resolution. Source: PACER, New Jersey District Court. SEP 28 2022 Complaint filed Pre-trial proceedings JUL 25 2023 Consent Judgment 300 DAYS TOTAL
Patent at issue

US8846679, US8846680 & US8859554 — Pimobendan compositions and packaging

Publication No.US8846679B2
Application No.US11/072207
Patent details
ProductPimobendan pharmaceutical composition for veterinary use
Cited in actionSeptember 28, 2022

Publication No.US8846680B2
Application No.US13/402292
Patent details
ProductPimobendan pharmaceutical composition — formulation variant
Cited in actionSeptember 28, 2022

Publication No.US8859554B2
Application No.US13/802989
Patent details
ProductPackaging assembly for pimobendan pharmaceutical composition
Cited in actionSeptember 28, 2022
Technical brief · sourced from PatSnap patent database
Patent figurePatent figure
Representative claim (1 of 2 independent)
1. A solid formulation comprising a homogenous dispersion of: pimobendan or a pharmaceutically acceptable salt thereof provided in an amount of 0.5 mg to 20 mg; a polyvalent acid selected from the group consisting of citric acid, tartaric acid, an anhydride thereof and mixtures thereof, wherein the polyvalent acid is present in an amount of 2.5 percent to 10 percent by weight of said solid formulation, and wherein the solid formulation includes a weight ratio of 1:10 to 1:40 of pimobendan to polyvalent acid; and a flavor acceptable to small animals, wherein the flavor is present in an amount of 5 to 30 percent by…
Technical background
1. BACKGROUND OF THE INVENTION 1. Technical Field The invention relates to the field of animal health. In particular, the invention relates to novel oral pharmaceutical compositions comprising, as part of the pharmaceutically active compounds, pimobendan. 2. Background Information Pimobendan, (4,5-dihydro-6-[2-(4-methoxyphenyl)-1H-benzimidazol-5-yl]-5-methyl-3(2H)-pyridazone) is disclosed in U.S. Pat. No. 4,361,563, herein incorporated by reference in its entirety. Pimobendan is a cardiotonic, hypotensive and anti-…
Patent family
74 family members across 31 jurisdictions (AR, IN, EP, CN, KR, JP, PT, HU, SI, PL, DE, DK)
PatSnap Eureka · FTO Search Agent
Should you run an FTO against US8846679, US8846680, and US8859554?

Any company holding or pursuing an ANADA for a pimobendan veterinary product — or involved in its manufacture, packaging, or distribution — should conduct a thorough freedom-to-operate analysis against Boehringer's pimobendan patent estate. The consent judgment in this case confirms that these three patents are currently valid, enforceable, and actively defended. Companies already holding ANADA approvals should also assess whether their specific formulation or packaging falls within the claim scope of any of the three patents.

Run FTO in Eureka
Patent data sourced from USPTO via PatSnap Eureka patent database Search patent records in Eureka ↗
Official verdict

Official order — verbatim text

Plaintiffs Boehringer Ingelheim Animal Health USA Inc. and Boehringer Ingelheim Vetmedica GmbH (collectively, "Boehringer"), and Defendants Cronus Pharma LLC and Cronus Phanna Specialties India Private Ltd. (collectively, "Cronus"), by their respective undersigned attorneys, hereby stipulate and consent to entry of judgment and injunction in this action as follows: Case 3:22-cv-05756-RK-RLS Document 43 Filed 07/25/23 Page 1 of 4 PageID: 338 IT IS this Q/5 day ofAJtUM-^—. 2023 HEREBY ORDERED, ADJUDGED AND DECREED that: 1. For purposes of this action only, this Court has jurisdiction over the subject matter of the above action and has personal jurisdiction over Boehringer and Cronus. 2. As used in this Consent Judgment and Order of Permanent Injunction, (i) the term "the Asserted Patents" means U.S. Patent Nos. 8,846,679, 8,846,680, and 8,859,554, which Cronus agrees are valid and enforceable, (ii) the term "Cronus ANADA Products" shall mean the products sold, offered for sale, or distributed pursuant to Abbreviated New Animal Dmg Application No. 200-728, and (iii) the term "Affiliate" shall mean any entity controlling, controlled by, or under common control with a Party, but only as long as such control continues, where "control" means: (1) the ownership of at least fifty percent (50%) of the equity or beneficial interest of such entity, or the right to vote for or appoint a majority of the board of directors or other governing body of such entity; or (2) the power to directly, or indirectly direct or cause the direction of the management and policies of such entity by any means whatsoever. 3. Except as specifically authorized by Boehringer, Cronus, including any of its successors and assigns, is enjoined from making, having made, using, selling, offering to sell, importing, or distributing the Cronus ANADA Products, on its own part or through any Affiliate, officer, agent, servant, employee or attorney, or through any person in concert or coordination with Cronus or its Affiliates, through and until the expiration of the Asserted Patents, including any patent term extension and/or patent term adjustment. IfBoehringer becomes entitled to any other regulatory exclusivities that are not referenced herein, Boehrmger may apply to the Court for modification of the injunction to incorporate such specified exclusivity. Case 3:22-cv-05756-RK-RLS Document 43 Filed 07/25/23 Page 2 of 4 PageID: 339 4. The Parties agree that, in the event of a violation of the terms of this Consent Judgment and Order of Permanent Injunction, jurisdiction and venue for an action to enforce performance under this Consent Judgment and Order of Permanent Injunction, including for a preliminary injunction against the breaching conduct, exists in this District Court, and the Parties hereby waive any and all defenses based on personal jurisdiction and venue. 5. Nothing in this Consent Judgment and Order of Permanent Injunction prohibits Cronus or its Affiliates from maintaining a Paragraph TV Certification to the Asserted Patents or prohibits PDA from granting final approval to Cronus's ANADA No. 200-728. 6. This Court retains jurisdiction to enforce or supervise performance under this Consent Judgment and Order of Permanent Injunction. 7. The Complaint and all remaining claims, counterclaims, or affirmative defenses in this action are dismissed without prejudice and without costs, disbursements, or attorneys' fees to any party.
Source: PACER Docket, Case 3:22-cv-05756, New Jersey District Court

The consent judgment and order of permanent injunction was entered by the New Jersey District Court on 25 July 2023 on the joint stipulation of all parties. The order is notable for two reasons: Cronus's express on-record concession that all three asserted patents are valid and enforceable, and the scope of the injunction, which tracks patent expiry including any term extension. The court retained jurisdiction for enforcement, and the underlying claims were dismissed without prejudice and without costs — consistent with a negotiated resolution rather than a merits adjudication.

PACER case 3:22-cv-05756 · Public docket record Explore in Eureka ↗
Judgment terms

Consent judgment: what the agreed resolution means for both parties

Legal mechanism

A consent judgment is a binding, court-entered ruling — not merely a settlement

A consent judgment is a formal judicial decree agreed by the parties and entered by the court, carrying the full force of a contested judgment. Unlike a private settlement, it is enforceable through the court's contempt powers. Here, the order includes a permanent injunction and expressly retains the court's jurisdiction to enforce compliance. Breach triggers in-district enforcement rights, and both parties waived personal jurisdiction and venue defences for any such enforcement action.

Court-enforceable permanent order
Patent holder outcome

Boehringer secures injunction blocking Cronus's pimobendan product through patent expiry

Boehringer obtained a permanent injunction covering the full life of all three asserted patents, including any patent term extension or adjustment. Cronus expressly conceded patent validity and enforceability — a record acknowledgment that strengthens Boehringer's position in any future disputes with other ANADA applicants referencing the same patents. The court also preserved Boehringer's ability to seek modification of the injunction if additional regulatory exclusivities arise.

Injunction through patent expiry
Defendant outcome

Cronus exits litigation but retains its ANADA and Paragraph IV certification

Cronus accepted a permanent injunction precluding commercialisation of its ANADA products without Boehringer's authorisation for the duration of the asserted patents. Critically, the consent judgment explicitly does not prohibit Cronus from maintaining its Paragraph IV certification to the asserted patents, and does not bar FDA from granting final approval to ANADA No. 200-728. Cronus thus preserves its regulatory position for a potential post-expiry market entry. No costs or attorneys' fees were assessed against either party.

ANADA preserved; commercialisation blocked
Commercial implications

Consent judgment reinforces Boehringer's pimobendan exclusivity in the animal health market

The court-entered permanent injunction effectively removes Cronus as a near-term generic competitor in the pimobendan veterinary segment. Cronus's on-record concession that the three patents are valid and enforceable may be noted by other generic applicants and IP challengers when assessing litigation risk against these patents. Any party contemplating a competing ANADA should factor these patents and their enforced status into freedom-to-operate and market entry strategy. The specific commercial arrangements between the parties, if any, are not disclosed in the available record.

Generic competition deferred
Legal analysis based on PACER docket records for case 3:22-cv-05756 and PatSnap Eureka litigation intelligence Search PatSnap Eureka ↗
Parties and representation

Full party and counsel information

RoleNameTypeDetail
PlaintiffBoehringer Ingelheim Animal Health USA, Inc.Company/Search in Eureka ↗
Co-PlaintiffBoehringer Ingelheim Vetmedica GmbHCompanySearch in Eureka ↗
DefendantCronus Pharma, LLCCompany/Search in Eureka ↗
Co-DefendantCronus Pharma Specialties India Pvt., Ltd.CompanySearch in Eureka ↗
Plaintiff counselCharles Michael LizzaAttorneyCounsel for Boehringer Ingelheim Animal Health USA, Inc.Search in Eureka ↗
Plaintiff counselSarah Ann SullvianAttorneyCounsel for Boehringer Ingelheim Animal Health USA, Inc.Search in Eureka ↗
Plaintiff counselWilliam C. BatonAttorneyCounsel for Boehringer Ingelheim Animal Health USA, Inc.Search in Eureka ↗
Plaintiff law firmSaul Ewing LLPLaw FirmRepresenting Boehringer Ingelheim Animal Health USA, Inc.Search in Eureka ↗
Defendant counselShailendra K. MaheshwariAttorneyCounsel for Cronus Pharma, LLCSearch in Eureka ↗
Defendant counselTedd William Van BuskirkAttorneyCounsel for Cronus Pharma, LLCSearch in Eureka ↗
Defendant law firmDaignault Iyer, LLPLaw FirmRepresenting Cronus Pharma, LLCSearch in Eureka ↗
Presiding judgeJudge N/AJudgeNew Jersey District CourtSearch in Eureka ↗
R&D signals

R&D signals in the veterinary pharmaceutical and pimobendan IP space

Forward-looking patent and innovation intelligence derived from Boehringer Ingelheim's pimobendan enforcement action and the broader veterinary cardiac drug IP landscape.

Patent portfolio

Boehringer's pimobendan patent estate: depth beyond three asserted patents

Boehringer Ingelheim holds a layered patent portfolio in veterinary cardiology, with the three asserted patents covering both composition and packaging dimensions. Monitoring Boehringer's continuation and divisional filings in this family can reveal the forward boundary of exclusivity and identify gaps that generic applicants might exploit post-expiry.

Boehringer pimobendan portfolio
Technology landscape

Filing trends in veterinary cardiac drug formulations signal emerging competition

The pimobendan veterinary cardiac space has attracted increasing generic interest, as evidenced by ANADA filings. Patent filing trends around pimobendan formulations, delivery systems, and dosage innovations can indicate where R&D investment is accelerating and where white space remains for next-generation veterinary cardiology products.

Veterinary cardiology filings
Competitor IP posture

Cronus Pharma's patent and ANADA position post-consent judgment

Cronus retains its ANADA No. 200-728 approval and Paragraph IV certification despite the permanent injunction. Tracking Cronus's own patent filings and regulatory submissions in the animal drug space can signal whether it is developing alternative formulations or preparing for post-expiry market entry in the pimobendan segment.

Cronus ANADA & IP activity
White-space opportunity

Adjacent innovation opportunities in veterinary cardiac drug delivery

With pimobendan composition and packaging heavily protected, R&D teams may find white space in novel delivery mechanisms, combination therapies, or species-specific formulations for veterinary cardiology. Patent landscape analysis around alternative inotropic agents and cardiac drug delivery in companion animals can surface underexplored innovation corridors.

Veterinary cardiology white space
Related litigation

Similar ANADA pharmaceutical patent consent judgments in New Jersey

Cases involving ANADA patent infringement actions and consent judgments in the District of New Jersey, particularly in the veterinary and human pharmaceutical sectors.

🔍
Access 40+ similar cases in PatSnap Eureka
Boehringer Ingelheim Animal Health USA, Inc. patent enforcement history, New Jersey District Court case history, Boehringer Ingelheim Animal Health USA, Inc.'s full IP portfolio, and comparable case analysis
ANADA pimobendan casesNJ pharma consent judgmentsVeterinary drug patent suitsBoehringer patent enforcement
Unlock similar cases in Eureka →
Strategic implications

What this case signals for the veterinary pharmaceutical IP landscape

Early consent judgments in ANADA litigation carry specific IP and commercial signals for the pimobendan and broader animal health generic drug sector.

On-record validity concessions in ANADA consent judgments carry real weight

Cronus's express agreement that US8846679, US8846680, and US8859554 are valid and enforceable is embedded in a court-entered order. While binding only on Cronus in this action, future ANADA applicants and IPR petitioners will encounter this record acknowledgment when assessing challenge strategy against these patents.

Permanent injunctions tied to patent expiry set a high bar for generic re-entry

The injunction runs through the last day of the asserted patents, including any PTE or PTA. Cronus retains its ANADA approval and Paragraph IV certification, positioning it for post-expiry launch — but any pre-expiry commercialisation without authorisation would expose it to contempt proceedings in the District of New Jersey.

🔒
Full strategic analysis in PatSnap Eureka
Unlock full strategic analysis for the veterinary pharmaceutical sector — based on this District of New Jersey consent judgment.
Boehringer portfolio depthPimobendan FTO risk mapANADA challenge strategy
Unlock full analysis →
Analysis powered by PatSnap Eureka Litigation Intelligence Explore in Eureka ↗
Frequently asked questions

Boehringer v Cronus — key questions answered

Still have questions? PatSnap Eureka can answer them instantly from patent and litigation data. Ask Eureka ↗
PatSnap Eureka

Map the pimobendan IP landscape before your next ANADA filing

Boehringer Ingelheim's three-patent blocking strategy and court-confirmed injunction illustrate the enforcement risk in this veterinary drug segment. Use PatSnap Eureka to run FTO analysis, track portfolio developments, and monitor new filings before submission.

Disclaimer

This page is compiled from public court dockets and third-party patent and litigation data via PatSnap Eureka, and is provided for general informational purposes only. The information shown — including party names, patent and application numbers, dates, case status, outcomes, and any analysis — may be incomplete, may not reflect the most recent filings or legal status, and may contain errors or omissions. Verify all details against official court records (for example, PACER) and the relevant patent office before relying on them.

Nothing on this page constitutes legal advice or a legal opinion on the validity, infringement, enforceability, or scope of any patent or case, and no attorney‑client relationship is created by its use. Any description of an outcome (such as a dismissal, settlement, or consent judgment) is a general summary, not a legal determination. All patents, trademarks, and company or law‑firm names are the property of their respective owners. PatSnap makes no warranty as to the accuracy or completeness of this content and disclaims, to the fullest extent permitted by law, all liability for reliance on it. For advice on a specific matter, consult qualified legal counsel.

Ask anything about this case.
PatSnap Eureka searches patents and litigation data to answer instantly.
Powered by PatSnap Eureka
Link copied to clipboard

Related Litigation Cases

Help us improve this page

Found incorrect or outdated information? Let us know and we'll get it fixed.