Niazi Licensing v. St. Jude Medical: CPS Catheter Patent Case Ends in Enforced Settlement
Niazi Licensing Corporation pursued St. Jude Medical for infringement of US6638268B2, a patent covering CPS catheter technology, in the District of Minnesota. After more than six years of litigation, the case closed when the court granted Niazi’s motion to enforce a settlement — a procedural signal that the parties reached terms but required judicial intervention to finalise them.
Six-year catheter patent dispute ends with court-enforced settlement
Filed in November 2017 in the District of Minnesota, Niazi Licensing Corporation v. St. Jude Medical, Inc. centred on alleged infringement of US6638268B2, a patent covering CPS catheter technology used in implantable cardiac device procedures. Niazi Licensing, a patent-holding entity, targeted St. Jude Medical — a major cardiac device manufacturer subsequently part of Abbott — asserting that its catheter products infringed the asserted claims. The case attracted substantial legal representation on both sides, with multiple law firms and nine attorneys appearing for each party.
The case formally closed on 7 May 2024 with a court order granting Niazi Licensing’s motion to enforce settlement (Dkt. 421). The docket entry — ‘IT IS ORDERED AND ADJUDGED THAT Plaintiff Niazi Licensing Corporation’s motion to enforce settlement is GRANTED’ — suggests the parties had reached substantive settlement terms but a dispute arose over their enforcement, requiring the court to intervene. Financial terms and any licensing arrangements remain confidential and are not reflected in the public record.
At 2,367 days, this litigation ran for approximately 6.5 years — a duration consistent with complex medical device patent cases involving Markman proceedings, expert discovery, and potentially inter partes review activity. The need to enforce rather than simply file a joint stipulation of dismissal is notable: it typically indicates a disagreement over whether and how settlement obligations were being met. What ultimately drove resolution, and the commercial value exchanged, remains unknown from the public docket.
Filing to Case Settled in 2367 days
6+ years in litigation — well above the median for district court patent cases
Court-enforced settlement: what the outcome means for both parties
Motion to enforce settlement: court compelled compliance
When a party moves to enforce a settlement, it signals that an agreement was reached — likely during mediation or direct negotiation — but that one party failed to execute or comply with the agreed terms. The court’s grant of Niazi’s motion means the settlement is binding and judicially enforced, carrying the weight of a court order. This is distinct from a consensual joint dismissal; it implies St. Jude Medical contested some aspect of performance.
Judicially enforced settlementNiazi secures binding resolution after 6.5 years
For Niazi Licensing, the court’s intervention to enforce the settlement represents a meaningful procedural victory on top of whatever substantive terms were agreed. The patent, US6638268B2, was not invalidated on the public record, and no finding of non-infringement was entered. This preserves the patent’s enforceability against other potential infringers, though the confidential terms of the settlement — including any licence or royalty — are unknown.
Patent survives; terms undisclosedSt. Jude avoids trial but faces enforced settlement obligations
St. Jude Medical escaped a jury or bench verdict on infringement, which limits any precedential damage to its broader product portfolio. However, the enforced settlement means it could not unilaterally walk away from agreed terms. Given St. Jude’s integration into Abbott following a 2017 acquisition, any financial or licensing obligations under the settlement would now fall to Abbott’s cardiac rhythm management division.
Obligations enforced; no invalidity rulingCPS catheter IP risk remains live for cardiac device makers
Because no court ruled US6638268B2 invalid or not infringed, the patent retains its presumption of validity and can be enforced against others in the CPS catheter and cardiac delivery device space. Competitors developing or marketing similar catheter systems should note that a licensing entity successfully compelled settlement from one of the sector’s largest players — suggesting the patent’s claims carry credible litigation risk.
Ongoing FTO risk for catheter manufacturersFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Niazi Licensing Corporation | Company | Patent licensing entity — holder of US6638268B2 covering CPS catheter technologySearch in Eureka ↗ |
| Defendant | St. Jude Medical, Inc. | Company | St. Jude Medical, Inc. — cardiac medical device manufacturer, subsidiary of AbbottSearch in Eureka ↗ |
| Plaintiff counsel | Barry A O’Neil | Attorney | Counsel for Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff counsel | Cody Blades | Attorney | Counsel for Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff counsel | J. Ashwin Madia | Attorney | Counsel for Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff counsel | Jeffer Ali | Attorney | Counsel for Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff counsel | Joshua A Newville | Attorney | Counsel for Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff counsel | Michael T. Griggs | Attorney | Counsel for Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff counsel | Nicholas S. Kuhlmann | Attorney | Counsel for Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff counsel | Sarah M. Wong | Attorney | Counsel for Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff counsel | Zane A. Umsted | Attorney | Counsel for Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff law firm | Boyle Fredrickson SC | Law Firm | Representing Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff law firm | Husch Blackwell LLP | Law Firm | Representing Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff law firm | Lommen Abdo PA | Law Firm | Representing Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff law firm | Madia Law, LLC | Law Firm | Representing Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff law firm | Newville Plc | Law Firm | Representing Niazi Licensing CorporationSearch in Eureka ↗ |
| Plaintiff law firm | Parker Daniels Kibort, LLC | Law Firm | Representing Niazi Licensing CorporationSearch in Eureka ↗ |
| Defendant counsel | Aaron R Hartman | Attorney | Counsel for St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant counsel | Ansis V Viksnins | Attorney | Counsel for St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant counsel | Kalpesh Shah | Attorney | Counsel for St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant counsel | Katherine A. Smith | Attorney | Counsel for St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant counsel | Mae B Van Lengerich | Attorney | Counsel for St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant counsel | Paige S. Stradley | Attorney | Counsel for St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant counsel | Rachel C. Hughey | Attorney | Counsel for St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant counsel | Samuel Ruggio | Attorney | Counsel for St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant counsel | Suzanne M Alton de Eraso | Attorney | Counsel for St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant law firm | 7760 France Avenue South | Law Firm | Representing St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant law firm | Benesch, Friedlander, Coplan & Aronoff LLP | Law Firm | Representing St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant law firm | Eide Bailly LLP | Law Firm | Representing St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant law firm | Hennepin County Government Center | Law Firm | Representing St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant law firm | Merchant & Gould PC | Law Firm | Representing St. Jude Medical, Inc.Search in Eureka ↗ |
| Defendant law firm | Monroe Moxness Berg PA | Law Firm | Representing St. Jude Medical, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Minnesota District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order granting Niazi’s motion to enforce settlement (Dkt. 421) reflects a judicial finding that a binding settlement agreement existed between the parties. In Minnesota federal practice, a motion to enforce is typically granted where the court finds offer, acceptance, and consideration — notwithstanding a subsequent dispute over performance. The order carries the force of a judgment, meaning non-compliance by St. Jude Medical could constitute contempt. No merits determination on infringement or validity was entered.
US6638268B2 — CPS catheter for implantable cardiac device delivery
US6638268B2, filed under application number US09/828502, covers CPS (Cardiac Positioning System) catheter technology — a specialised delivery and positioning system used in implantable cardiac procedures. The patent sits at the intersection of electrophysiology and catheter engineering, covering structural and functional elements of how catheters are navigated and positioned within cardiac anatomy during device implantation. Its grant reflects a period of active innovation in minimally invasive cardiac intervention techniques.
For cardiac rhythm management companies, catheter delivery systems represent a core enabling technology for products including pacemakers, ICDs, and CRT devices. A patent covering CPS catheter architecture carries strategic weight: it can be asserted against a wide range of delivery catheter designs used across the sector. The fact that Niazi Licensing sustained this litigation for over six years against St. Jude Medical — and ultimately enforced a settlement — suggests the claims were viewed as commercially credible by both sides.
Should you run an FTO analysis against US6638268B2?
Any company developing, manufacturing, or marketing CPS catheter systems, cardiac delivery catheters, or related implantable device positioning tools should treat US6638268B2 as a live risk. The patent was not invalidated in this case, and no non-infringement finding exists. If your product involves catheter-based navigation or positioning within cardiac anatomy for device implantation, the claims of this patent warrant direct analysis by patent counsel.
PatSnap Eureka’s FTO Search Agent can map the claim language of US6638268B2 against your product specifications, identify prosecution history file wrapper estoppel, surface any ex parte or IPR proceedings that may affect claim scope, and locate design-around opportunities. Upload your technical documentation and run a targeted FTO in minutes — before your next product launch or acquisition closes.
Run a freedom-to-operate analysis on US6638268B2 to assess your product’s exposure
Run FTO in Eureka →Similar cardiac catheter patent infringement cases in US district courts
Cases involving catheter and implantable cardiac device patents litigated in the District of Minnesota and related federal courts — including NPE enforcement actions against major cardiac OEMs.
What this case signals for the cardiac catheter IP landscape
A six-year enforcement campaign ending in court-compelled settlement underscores the durability of catheter device patents against major medical OEMs.
Enforced settlements raise the cost of walking away from agreed terms
When a court grants a motion to enforce settlement, it signals that informally agreed terms become legally binding obligations — even if never reduced to a signed formal agreement. Medical device companies entering settlement negotiations should ensure internal approvals and documentation are in place before any terms are communicated to opposing counsel.
US6638268B2 survived 6+ years without an invalidity ruling
The absence of any public invalidity finding — whether through the district court or a parallel IPR — means US6638268B2 retains its presumption of validity. Any manufacturer of CPS catheter or related cardiac delivery systems should conduct a current FTO analysis before assuming the patent is unenforceable.
Niazi v St. — key questions answered
The case settled, with the Minnesota District Court granting Niazi Licensing’s motion to enforce settlement on 7 May 2024. No merits ruling on infringement or validity was issued. The financial terms of the settlement are not on the public record.
Niazi Licensing asserted US6638268B2 (application number US09/828502), a patent covering CPS catheter technology used in implantable cardiac device delivery and positioning procedures.
A motion to enforce settlement is filed when one party believes the other has failed to comply with terms agreed upon during settlement negotiations. If granted, the court treats those terms as a binding judgment. In this case, the court sided with Niazi, meaning St. Jude Medical was compelled to honour the agreed terms.
Based on the public record, yes. No court issued a ruling of invalidity or non-infringement during this litigation. The patent retains its presumption of validity and may be enforced against other parties in the cardiac catheter and implantable device delivery space.
The case ran for 2,367 days — approximately 6.5 years — from filing in November 2017 to closure in May 2024. This duration is consistent with complex medical device patent disputes involving claim construction proceedings, expert discovery, potential IPR activity, and extended settlement negotiations. The need to file a motion to enforce suggests settlement negotiations were prolonged.
PatSnap Eureka searches patents and litigation data to answer instantly.