Rex Medical v. Ethicon: Surgical Stapler Patent Suit Transferred to Delaware in 89 Days
Rex Medical, LP asserted three patents covering surgical staplers and tissue sealers against Ethicon, Inc. in the Western District of Texas. Within 89 days, Judge Fred Biery granted an unopposed motion to transfer the case to the District of Delaware — citing a related Rex Medical trial before Judge Noreika as the key consolidating rationale.
Surgical Stapler IP Battle Moves to Delaware After Venue Realignment
Rex Medical, LP filed this patent infringement action against Ethicon, Inc. on 18 October 2024 in the Western District of Texas (Case No. 6:24-cv-00556), asserting three patents — US10675033B2, US10136892B2, and US9439650B2 — against a range of Ethicon surgical stapler and tissue sealer products including the ECHELON™+ Powered Stapler, ECHELON FLEX™ Powered Vascular Stapler, and the ENSEAL G2 family of articulating and curved tissue sealers.
The case closed on 15 January 2025 when Judge Fred Biery granted Rex Medical’s unopposed motion to transfer venue to the District of Delaware. The court found merit in the transfer, specifically noting that a related Rex Medical case — Rex Medical v. Intuitive Surgical, Civil Action No. 19-cv-5-MN — sharing the same asserted patents had already proceeded to trial before Judge Maryellen Noreika in Delaware. No Texas court ruled on the merits; all pending motions were dismissed as moot.
The 89-day lifespan in Texas is consistent with a pre-substantive transfer rather than tactical delay — Ethicon did not oppose the motion, suggesting the parties aligned on Delaware as the more efficient forum given the prior related proceeding. The public record does not reveal whether any substantive negotiations occurred during this period, nor whether a scheduling order or claim construction briefing had commenced before the transfer was granted.
Filing to Case Transferred in 89 days
89 days in W.D. Texas before transfer — substantive litigation yet to begin
Case transferred to Delaware: what the venue shift means for both parties
Venue transfer consolidates related patent litigation in Delaware
A venue transfer under 28 U.S.C. § 1404(a) moves a case to a more convenient or appropriate forum without resolving the merits. Here, the transfer was unopposed, and Judge Biery explicitly cited the existence of a related Rex Medical case — sharing the same asserted patents — that had already gone to trial before Judge Noreika in Delaware. Judicial economy and familiarity with the patent family were the operative rationale.
No merits ruling in TexasRex Medical gains a judge already familiar with its patent portfolio
By securing transfer to the District of Delaware, Rex Medical brings its Ethicon claims before a court that has prior exposure to the same asserted patents through the Intuitive Surgical litigation. Judge Noreika’s familiarity with claim construction history and technical context could reduce time-to-trial and limit relitigation of settled interpretive questions, a meaningful strategic advantage for a patent licensor with a multi-defendant enforcement campaign.
Strategic forum advantageEthicon faces litigation in a forum with established claim construction record
Ethicon’s decision not to oppose the transfer suggests the company may have calculated that Delaware is an acceptable — or even preferable — venue relative to the Western District of Texas. However, litigating in a court already familiar with Rex Medical’s patent family from prior proceedings may constrain Ethicon’s ability to relitigate claim scope arguments that were resolved or clarified in the Intuitive Surgical trial. The substantive battle on infringement and validity now begins in Delaware.
Merits dispute continuesSurgical stapler IP enforcement signals coordinated multi-defendant strategy
Rex Medical’s sequential assertion of the same patent family against both Intuitive Surgical and Ethicon — two major surgical robotics and stapler players — is consistent with a coordinated enforcement campaign. Competitors in the surgical stapler and energy sealing device space, including reload cartridge manufacturers, should monitor the Delaware proceedings closely. Delaware’s developed patent docket and established claim construction from the prior trial may accelerate outcomes on these three patents.
Multi-defendant IP campaignFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Rex Medical, LP | Company | Medical device IP licensor — holder of US10675033B2, US10136892B2, US9439650B2Search in Eureka ↗ |
| Defendant | Ethicon, Inc. | Company | Ethicon, Inc. — Johnson & Johnson subsidiary, surgical stapler and energy device manufacturerSearch in Eureka ↗ |
| Plaintiff counsel | Adam G. Price | Attorney | Counsel for Rex Medical, LPSearch in Eureka ↗ |
| Plaintiff counsel | Andrew G. DiNovo | Attorney | Counsel for Rex Medical, LPSearch in Eureka ↗ |
| Plaintiff counsel | Christopher V. Goodpastor | Attorney | Counsel for Rex Medical, LPSearch in Eureka ↗ |
| Plaintiff counsel | Michael W. Shore | Attorney | Counsel for Rex Medical, LPSearch in Eureka ↗ |
| Plaintiff counsel | Zachary Della Porta | Attorney | Counsel for Rex Medical, LPSearch in Eureka ↗ |
| Plaintiff law firm | DiNovo Price LLP | Law Firm | Representing Rex Medical, LPSearch in Eureka ↗ |
| Plaintiff law firm | The Shore Firm LLP | Law Firm | Representing Rex Medical, LPSearch in Eureka ↗ |
| Defendant counsel | Daniel L. Moffett | Attorney | Counsel for Ethicon, Inc.Search in Eureka ↗ |
| Defendant law firm | Akin Gump Strauss Hauer & Feld, LLP | Law Firm | Representing Ethicon, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Fred Biery | Judge | Texas Western District CourtSearch in Eureka ↗ |
Official order — verbatim text
The transfer order is procedural rather than substantive — Judge Biery made no finding on infringement, validity, or claim scope. The court’s explicit reference to the related Intuitive Surgical trial sharing ‘common asserted patents’ signals that judicial economy, not convenience alone, drove the ruling. For Ethicon, this means the Delaware court arrives with contextual knowledge of Rex Medical’s patent family that a fresh forum would not possess — a factor that typically accelerates early case management rulings.
US10675033B2, US10136892B2, US9439650B2 — Surgical Stapler and Tissue Sealer Patents
The three asserted patents — US10675033B2 (App. No. 16/185506), US10136892B2 (App. No. 15/617835), and US9439650B2 (App. No. 15/018000) — form a related family covering mechanical and control aspects of powered surgical staplers and tissue sealing devices. The family spans applications in minimally invasive surgery, addressing the articulation, firing mechanics, and cartridge reload systems used in laparoscopic and robotic-assisted procedures. The earliest application in the family suggests development activity predating the widespread adoption of robotic surgical platforms.
The same patent family was previously asserted against Intuitive Surgical — a leading robotic surgery platform provider — in a case that proceeded to trial in the District of Delaware. That precedent makes these patents strategically significant: they have survived the scrutiny of adversarial proceedings at trial level. For competitors manufacturing powered staplers, reload cartridges, or articulating energy sealers, the Rex Medical portfolio represents a credible enforcement threat with demonstrated litigation staying power.
Should your team run an FTO against US10675033B2, US10136892B2, and US9439650B2?
Any company designing, manufacturing, or distributing powered surgical staplers, reload cartridges, or articulating tissue sealers should treat this patent family as a live enforcement risk. Rex Medical has demonstrated willingness to litigate to trial — and the Delaware court’s prior familiarity with these patents means claim construction could move faster than typical. R&D teams working on next-generation stapler platforms or energy sealing devices should audit their product specifications against each asserted claim before the Delaware claim construction order issues.
PatSnap Eureka’s FTO Search Agent can map your product’s technical features against the claim trees of all three Rex Medical patents simultaneously, flagging literal and doctrine-of-equivalents exposure. Eureka also surfaces related family members, continuation applications, and cited prior art — giving your IP counsel the full landscape needed to assess design-around options and challenge validity before the Delaware proceedings set binding claim interpretations.
Run a freedom-to-operate analysis on US10675033B2 to assess your product’s exposure
Run FTO in Eureka →Related Surgical Stapler Patent Litigation in Delaware and Texas
Cases involving surgical stapler and tissue sealer patents in the District of Delaware and W.D. Texas, including prior Rex Medical proceedings against Intuitive Surgical.
What this case signals for the surgical device IP landscape
Rex Medical’s coordinated enforcement across surgical stapler defendants raises portfolio risk for the broader minimally invasive surgery sector.
Delaware’s prior Rex Medical trial record creates asymmetric litigation risk
Any company in the surgical stapler or energy sealing device space now faces a Delaware court with established familiarity with Rex Medical’s three asserted patents. Prior claim construction rulings from the Intuitive Surgical trial are likely to carry significant weight, narrowing the interpretive arguments available to future defendants including Ethicon.
Unopposed transfers often signal pre-negotiated forum alignment
Ethicon’s decision not to contest the transfer — rather than filing a motion to dismiss or challenging venue outright — suggests the parties may have aligned on Delaware as the operative litigation forum early in the case. IP teams should treat an unopposed venue transfer as a signal that substantive dispute resolution, not procedural attrition, is the defendant’s chosen strategy.
Rex v Ethicon — key questions answered
Judge Biery granted Rex Medical’s unopposed motion to transfer on 15 January 2025, citing judicial economy: a related Rex Medical case asserting the same three patents against Intuitive Surgical had already gone to trial before Judge Noreika in Delaware. Consolidating related patent family litigation in a single forum with established claim construction context was the operative rationale.
Rex Medical asserted three patents: US10675033B2, US10136892B2, and US9439650B2. These patents cover aspects of powered surgical staplers, reload cartridges, and articulating tissue sealing devices. The same patent family was previously litigated in Delaware against Intuitive Surgical.
Rex Medical accused Ethicon’s ECHELON™+ Powered Stapler, ECHELON FLEX™ Powered Vascular Stapler with Advanced Placement Tip, ECHELON FLEX™ ENDOPATH™ Stapler, associated reload cartridges, and the ENSEAL G2 family of tissue sealers — including Articulating, Curved, and Straight variants — of infringing its surgical device patents.
No. The W.D. Texas court made no substantive ruling on infringement, validity, or claim construction. The case was transferred to Delaware on procedural grounds after 89 days, with all pending Texas motions dismissed as moot. The merits dispute will now proceed before the District of Delaware.
Rex Medical v. Intuitive Surgical (Civil Action No. 19-cv-5-MN) involved the same three asserted patents and proceeded to trial before Judge Noreika in Delaware. The Delaware court’s existing familiarity with these patents’ claim scope and technical context is likely to influence case management scheduling and may constrain relitigation of claim construction positions already addressed in the prior proceeding.
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