Book a demo

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

Try now
Boehringer-Ingelheim v. Ipca Laboratories — TRADJENTA Linagliptin Patent | PatSnap
Patent Litigation

Boehringer-Ingelheim v. Ipca Laboratories: Consent Judgment on TRADJENTA® Linagliptin Patents

Boehringer-Ingelheim filed suit in the Delaware District Court against Ipca Laboratories over three patents protecting linagliptin tablets marketed as TRADJENTA®. The case resolved by consent judgment in just 76 days, with Ipca acknowledging the validity and enforceability of all three asserted patents and accepting an injunction barring its generic ANDA product until patent expiry.

Resolution time
76days
76 days — resolved significantly faster than median Hatch-Waxman district court timelines
Patents asserted
3
US9486526, US10034877, and US11033552 — three linagliptin (TRADJENTA®) formulation and use patents
Outcome
Consent Judgment
Agreed by the parties, entered by the court — binding, final, and court-enforceable
Cost ruling
No Costs
Court order specifies no costs, disbursements, or attorney fees awarded to any party
Published by PatSnap Insights Team · Verified by PatSnap Eureka Data
Case overview

Rapid Hatch-Waxman resolution: Ipca enjoined on all three TRADJENTA patents

Boehringer-Ingelheim filed this Hatch-Waxman patent infringement action on 26 March 2026 in the District of Delaware before Judge Colm F. Connolly, asserting three patents — US9486526, US10034877, and US11033552 — against Ipca Laboratories Ltd.'s ANDA No. 220564 for a generic version of TRADJENTA® (linagliptin) tablets. Counsel for Boehringer were Brian P. Egan and Megan Elizabeth Dellinger of Morris, Nichols, Arsht & Tunnell LLP. No defendant law firm or agents appear on the public record.

The case closed on 10 June 2026 — just 76 days after filing — via a consent judgment entered by the court. Under the judgment, Ipca agreed that all three asserted patents are valid and enforceable, and accepted an injunction prohibiting it from making, using, selling, offering to sell, importing, or distributing its ANDA product until expiration of all three patents, including any patent term extensions or adjustments. The complaint and all remaining claims were dismissed without prejudice and without costs to any party. The court retained jurisdiction to enforce the consent judgment.

A 76-day resolution is notably swift for Hatch-Waxman litigation, suggesting the parties reached terms early in the litigation cycle before substantive motion practice. The consent judgment explicitly preserves Ipca's right to maintain or file Paragraph IV certifications against the three patents, a standard carve-out in ANDA consent judgments. The specific terms of any related commercial agreement between the parties — including any authorised generic or launch date provisions — are not disclosed in the available public record.

See Complete Case & Patent Analysis →
Case at a glance
CourtDelaware District Court
JudgeColm F. Connolly
FiledMarch 26, 2026
ClosedJune 10, 2026
Duration76 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 / Delaware District Court via PatSnap Eureka Litigation Intelligence Explore similar cases ↗
Case timeline

Filing to Consent Judgment in 76 days

76 days — resolved significantly faster than median Hatch-Waxman district court timelines

Case timeline: Complaint filed MAR 26 2026 — 76 days total Horizontal timeline showing the three key events in Boehringer-Ingelheim v Ipca Laboratories Ltd. from filing to resolution. Source: PACER, Delaware District Court. MAR 26 2026 Complaint filed Pre-trial proceedings JUN 10 2026 Consent Judgment 76 DAYS TOTAL
Patent at issue

US9486526, US10034877 & US11033552 — linagliptin (TRADJENTA®) formulation patents

Publication No.US11033552B2
Application No.US16/357357
Patent details
ProductLinagliptin formulation and pharmaceutical compositions for type 2 diabetes
Cited in actionMarch 26, 2026

Publication No.US10034877B2
Application No.US15/287228
Patent details
ProductLinagliptin dosage forms and methods of use for type 2 diabetes
Cited in actionMarch 26, 2026

Publication No.US9486526B2
Application No.US14/294630
Patent details
ProductLinagliptin tablet formulations and treatment methods for type 2 diabetes
Cited in actionMarch 26, 2026
Technical brief · sourced from PatSnap patent database
Patent figurePatent figure
Representative claim (1 of 1 independent)
1. A solid-form pharmaceutical composition comprising as an active ingredient 5 mg of a DPP IV inhibitor compound of formula or a salt thereof, a first diluent, a second diluent, a binder, a disintegrant and a lubricant, wherein the first diluent is mannitol, the second diluent is pregelatinized starch, the binder is copovidone, the disintegrant is corn starch, and the lubricant is magnesium stearate; and wherein the DPP IV inhibitor compound is present in an amount 0.5-7.0% based on the total weight of DPP IV inhibitor compound, first diluent, second diluent, binder, disintegrant and lubricant.
Technical background
1. FIELD OF THE INVENTION The present invention relates to pharmaceutical compositions of selected DPP IV inhibitors, their preparation and their use to treat selected medical conditions. 2. DESCRIPTION OF THE PRIOR ART The enzyme DPP-IV (dipeptidyl peptidase IV) also known as CD26 is a serine protease known to lead to the cleavage of a dipeptide from the N-terminal end of a number of proteins having at their N-terminal end a prolin or alanin residue. Due to this property DPP-IV inhibitors interfere with the plasma…
Patent family
170 family members across 48 jurisdictions (MY, DK, JP, MO, KR, PL, HR, BR, CN, AT, PT, CA)
PatSnap Eureka · FTO Search Agent
Should you run an FTO against US9486526, US10034877, and US11033552?

Any pharmaceutical manufacturer, ANDA filer, or generic developer working in the DPP-4 inhibitor or linagliptin space should treat this three-patent cluster as a priority FTO target. The consent judgment confirms all three patents are active, valid, and enforceable, with injunctive coverage extended through patent expiry including term extensions. A design-around or invalidity strategy requires independent claim analysis of each patent before committing to an ANDA filing.

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

IT IS HEREBY ORDERED, ADJUDGED AND DECREED that: 1. This Court has jurisdiction over the subject matter of this action and has personal jurisdiction over the parties.As used in this Consent Judgment, (i) the terai "the '526 Patent" means U.S. Patent No. 9,486,526, which Ipca agrees is valid and enforceable, (ii) the term "the '877 Patent" means U.S. Patent No. 10,034,877, which Ipca agrees is valid and enforceable, (hi) the term "the '552 Patent" means U.S. Patent No. 11,033,552, which Ipca agrees is valid and enforceable, (iv) the term "Ipca Tradjenta AND A Product" shall mean Ipca ANDA No. 220564 together with any supplements, amendments, or replacements thereto, and (v) 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. Unless specifically authorized or otherwise modified between the parties, Ipca, including any of its successors and assigns, is enjoined from making, having made, using, selling, offering to sell, importing or distributing the Ipca Tradjenta ANDA Product, on its own part or through any Affiliate, officer, agent, servant, employee or attorney, or through any person in concert or coordination with Ipca or its Affiliates, through and until the expiration of the'526 Patent, the '877 Patent, and the '552 Patent, including any patent tenu extension and/or patent term adjustment. If Boehringer becomes entitled to any other regulatory exclusivities that are not referenced herein, Boehringer may apply to the Court for modification of the consent judgment to incorporate such specified exclusivity. 4. The Parties agree that, in the event of violation of the terms of this Consent Judgment or any related agreement(s), jurisdiction and venue for an action to enforce performance under this Consent Judgment, 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 herein prohibits or is intended to prohibit Ipca from maintaining and/or (e.g., in the case of a recertification pursuant to 21 C.F.R.§ 314.96(d)) filing a "Paragraph IV Certification" pursuant to 21 U.S.C. § 355(j)(2)(A)(vii)(IV) or pursuant to 21 C.F.R. § 314.94(a)(12) with respect to the the '526 Patent, the '877 Patent, or the '552 Patent. 6. This Court retains jurisdiction to enforce or supervise performance under this Consent Judgment and any related agreement(s). 7. The Complaint and all remaining claims, counterclaims, or affirmative defenses in the above action are dismissed without prejudice and without costs, disbursements, or attorney fees to any party.
Source: PACER Docket, Case 1:26-cv-00336, Delaware District Court

The consent judgment records Ipca's explicit agreement that US9486526, US10034877, and US11033552 are each valid and enforceable — an unusually clear validity concession in Hatch-Waxman practice. The injunction runs through patent expiry including any term extensions, and the court retained jurisdiction to enforce the judgment. The underlying complaint was dismissed without prejudice and without costs, consistent with the recorded Basis of Termination of Consent Judgment.

PACER case 1:26-cv-00336 · Public docket record Explore in Eureka ↗
Judgment terms

Consent judgment: what the agreed resolution means for both parties

Legal mechanism

What a consent judgment means in Hatch-Waxman litigation

A consent judgment is a binding, court-entered judgment on terms agreed by the parties. It carries the full force of a litigated judgment and is enforceable by the court. Here, Ipca stipulated to the validity and enforceability of all three patents and accepted an injunction blocking its ANDA product. The court expressly retained jurisdiction to enforce the judgment and any related agreements.

Court-entered, binding and final
Patent holder outcome

Boehringer secures patent protection through to expiry on all three patents

Boehringer-Ingelheim obtained a court-entered injunction barring Ipca's generic linagliptin ANDA product until expiry of US9486526, US10034877, and US11033552, including any patent term extensions or adjustments. Ipca's explicit agreement that all three patents are valid and enforceable strengthens Boehringer's enforcement position against this and potentially other ANDA filers. The court also reserved Boehringer's right to apply for modification if additional regulatory exclusivities arise.

Injunction through patent expiry
Defendant outcome

Ipca enjoined on its ANDA product; Paragraph IV rights preserved

Ipca is enjoined from commercialising its generic linagliptin ANDA product (ANDA No. 220564) until all three asserted patents expire, including any extensions. Ipca agreed the patents are valid and enforceable. Notably, the consent judgment preserves Ipca's right to maintain or file Paragraph IV certifications against the three patents — a standard carve-out. The specific terms of any related commercial agreement are not disclosed in the available public record.

Enjoined until patent expiry
Commercial implications

TRADJENTA generic entry delayed; sector enforcement signal reinforced

The consent judgment effectively delays generic linagliptin entry by Ipca until the TRADJENTA patent estate expires. For other ANDA filers in the linagliptin space, Ipca's explicit validity acknowledgment on all three patents raises the evidentiary baseline for any invalidity challenge. The swift 76-day resolution suggests the patent position was commercially difficult to contest, a signal relevant to any party evaluating litigation risk against Boehringer's linagliptin portfolio.

Generic entry deferred
Legal analysis based on PACER docket records for case 1:26-cv-00336 and PatSnap Eureka litigation intelligence Search PatSnap Eureka ↗
Parties and representation

Full party and counsel information

RoleNameTypeDetail
PlaintiffBoehringer-IngelheimIndividual/Search in Eureka ↗
DefendantIpca Laboratories Ltd.Company/Search in Eureka ↗
Plaintiff counselBrian P. EganAttorneyCounsel for Boehringer-IngelheimSearch in Eureka ↗
Plaintiff counselMegan Elizabeth DellingerAttorneyCounsel for Boehringer-IngelheimSearch in Eureka ↗
Plaintiff law firmMorris, Nichols, Arsht & Tunnell LLPLaw FirmRepresenting Boehringer-IngelheimSearch in Eureka ↗
Presiding judgeJudge Colm F. ConnollyJudgeDelaware District CourtSearch in Eureka ↗
R&D signals

R&D signals in the linagliptin and DPP-4 inhibitor patent space

Forward-looking patent and R&D intelligence for the linagliptin space, surfaced from Boehringer-Ingelheim's portfolio activity and the DPP-4 inhibitor technology landscape.

Patent portfolio

Boehringer-Ingelheim's linagliptin patent filing activity

The three asserted patents (US9486526, US10034877, US11033552) reflect a continuation filing strategy across multiple application generations, suggesting Boehringer-Ingelheim has actively layered its linagliptin IP. Monitoring the broader continuation family and any new applications in the linagliptin formulation space can reveal the durability of this exclusivity position and identify expiry cliffs.

Boehringer linagliptin filings
Technology landscape

DPP-4 inhibitor formulation filing trends post-2020

The DPP-4 inhibitor class — including linagliptin, sitagliptin, and saxagliptin — has seen layered patent prosecution strategies from major innovators. Tracking formulation, combination therapy, and method-of-treatment filings in this space can reveal where next-generation exclusivity is being built and where white space exists for generic or novel compound development.

DPP-4 inhibitor filing trends
Competitor IP posture

Ipca Laboratories' patent position in diabetes drug formulations

Ipca Laboratories is an Indian generic pharmaceutical manufacturer with a broad ANDA pipeline. Understanding its patent filing activity in the oral antidiabetic space — including any independent formulation or process patents — can inform competitive intelligence for both innovator and generic players assessing future product strategies in the DPP-4 inhibitor segment.

Ipca diabetes IP activity
White space

Adjacent R&D opportunities near the TRADJENTA patent cluster

With the core linagliptin formulation patents confirmed valid and enforced through expiry, R&D teams may find opportunity in adjacent DPP-4 inhibitor combination therapies, novel delivery mechanisms, or next-generation diabetes treatments where the Boehringer patent estate does not extend. Identifying these white-space areas requires mapping claim scope across the three-patent cluster against emerging therapeutic approaches.

Linagliptin white space
Related litigation

Similar Hatch-Waxman linagliptin and DPP-4 inhibitor patent cases

Explore related Hatch-Waxman ANDA infringement cases involving DPP-4 inhibitor and linagliptin patents litigated in the Delaware District Court and comparable venues.

🔍
Access 40+ similar cases in PatSnap Eureka
Boehringer-Ingelheim patent enforcement history, Delaware District Court case history, Boehringer-Ingelheim's full IP portfolio, and comparable case analysis
Other linagliptin ANDA casesDPP-4 inhibitor patent suitsBoehringer ANDA enforcementDelaware Hatch-Waxman consents
Unlock similar cases in Eureka →
Strategic implications

What this case signals for the linagliptin and DPP-4 inhibitor IP landscape

This consent judgment reinforces Boehringer-Ingelheim's patent enforcement posture across the TRADJENTA portfolio and raises the bar for generic entry.

Three-patent consent judgment raises the invalidity bar for other ANDA filers

Ipca's explicit agreement that US9486526, US10034877, and US11033552 are valid and enforceable creates a public record that competing ANDA filers and IPR petitioners must now contend with. While not binding on other parties, the acknowledgment can be cited in parallel proceedings and may influence settlement dynamics for other generic challengers in the linagliptin space.

76-day resolution suggests limited viable invalidity or non-infringement angles

Resolution within 76 days — before any substantive motion practice in the public record — consistently signals that the defending party assessed the litigation risk as commercially prohibitive. For generic manufacturers monitoring the TRADJENTA ANDA landscape, this timeline suggests Boehringer's three-patent cluster presents a high-difficulty enforcement target.

🔒
Full strategic analysis in PatSnap Eureka
Unlock deeper IP strategy signals for the linagliptin/DPP-4 inhibitor sector from this Delaware District Court consent judgment.
Post-grant challenge riskOther ANDA filers landscapePTE and exclusivity exposure
Unlock full analysis →
Analysis powered by PatSnap Eureka Litigation Intelligence Explore in Eureka ↗
Frequently asked questions

Boehringer-Ingelheim v Ipca — key questions answered

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

Track the TRADJENTA patent estate and linagliptin ANDA landscape

Monitor validity challenges, continuation filings, and new ANDA activity against the three TRADJENTA linagliptin patents. PatSnap Eureka surfaces real-time patent and litigation signals across the DPP-4 inhibitor space.

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.