4web v. NuVasive: 11-Patent Spinal Implant Dispute Transferred to S.D. California
4web, Inc. asserted 11 patents covering programmable spinal and orthopedic implant technology against NuVasive, Inc. in the Eastern District of Texas. After 413 days, Judge Rodney Gilstrap ordered an interdistrict transfer to the Southern District of California — shifting the venue where this multi-patent dispute will ultimately be decided.
A high-stakes spinal implant portfolio shifted from Texas to California
4web, Inc., a medical device innovator and holder of an extensive portfolio covering programmable implant architecture, filed suit against NuVasive, Inc. on April 25, 2023 in the Eastern District of Texas (Marshall Division) before Judge Rodney Gilstrap. The complaint asserted infringement of 11 US patents spanning implant devices with non-planar surfaces, curved or arced struts, spinal programmable implants, and traumatic bone fracture repair systems — a portfolio that reflects years of R&D investment in truss-based implant geometry.
On June 11, 2024, the court ordered an interdistrict transfer to the Southern District of California, terminating the Texas proceedings without any merits adjudication. A venue transfer of this kind typically signals that the transferee district was found to be a clearly more convenient forum — commonly assessed under the § 1404(a) standard applied in the Fifth Circuit, weighing factors such as witness location, document accessibility, and the parties’ principal places of business. NuVasive is headquartered in San Diego, California, which is within the Southern District, consistent with why that forum may have been found more appropriate.
The 413-day duration before transfer is notable: transfer motions in E.D. Texas are frequently litigated intensively, and this timeline suggests the parties engaged in substantial pre-transfer motion practice. What drove the ultimate transfer ruling — whether it was the location of NuVasive’s witnesses, its manufacturing operations, or corporate domicile — is not detailed in the public termination record. The substantive patent claims remain alive; the litigation will now proceed in the Southern District of California under that court’s own scheduling and discovery framework.
Filing to Case Transferred in 413 days
413 days in E.D. Texas before venue transfer — longer than median transfer rulings in this district
What the interdistrict transfer to S.D. California means for both parties
Interdistrict transfer under 28 U.S.C. § 1404(a) explained
A § 1404(a) transfer moves a case to a district where it could originally have been filed and where the balance of convenience and justice favours transfer. The transferring court makes no ruling on the merits — all substantive claims, counterclaims, and defences carry over intact to the new forum. The Southern District of California receives the case at whatever procedural stage it had reached in Texas.
No merits decided in Texas4web must now litigate on NuVasive’s home turf
A transfer to the Southern District of California — where NuVasive is headquartered — is generally a less favourable outcome for the plaintiff. 4web loses the E.D. Texas scheduling advantage and must re-engage with different local rules, a new judge, and potentially a longer time-to-trial. However, all 11 patent claims remain live, and 4web retains full enforcement rights. The strength of the underlying IP portfolio is unchanged by the venue shift.
Claims intact; venue less favourableNuVasive gains procedural advantage in its home district
Transfer to San Diego is a meaningful procedural win for NuVasive. The Southern District of California typically offers different case management timelines compared to E.D. Texas, and NuVasive’s witnesses, documents, and local counsel will be geographically closer. This does not resolve the underlying infringement allegations but improves NuVasive’s operational position for the litigation ahead. Substantive invalidity and non-infringement defences remain fully available.
Procedural win for defendantVenue strategy matters as much as patent strength in device litigation
This transfer reinforces a broader trend: E.D. Texas patent cases involving defendants with substantial ties to other districts face elevated transfer risk following the Federal Circuit’s In re Google and In re Apple decisions. For spinal implant manufacturers facing assertion from E.D. Texas, early investment in a § 1404(a) motion — supported by concrete evidence of witness and document locations — can shift the entire litigation dynamic. The 11-patent scope of this case also signals the value 4web places on its programmable implant IP.
Venue strategy is litigation strategyFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | 4web, Inc. | Company | Medical device innovator — holder of 11 programmable spinal implant patentsSearch in Eureka ↗ |
| Defendant | Nuvasive, Inc. | Company | NuVasive, Inc. — global spinal technology company headquartered in San Diego, CASearch in Eureka ↗ |
| Plaintiff counsel | Andrea Leigh Fair | Attorney | Counsel for 4web, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Christopher A. Pinahs | Attorney | Counsel for 4web, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Demitri Dawson | Attorney | Counsel for 4web, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Emily Tremblay | Attorney | Counsel for 4web, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Jacob M. Holdreith | Attorney | Counsel for 4web, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Jennifer Parker Ainsworth | Attorney | Counsel for 4web, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Michael Longley | Attorney | Counsel for 4web, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Rajin S. Olson | Attorney | Counsel for 4web, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Robert M. Isackson | Attorney | Counsel for 4web, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Leason Ellis LLP (NY) | Law Firm | Representing 4web, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Robins Kaplan, LLP | Law Firm | Representing 4web, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Robins Kaplan LLP (Minneapolis) | Law Firm | Representing 4web, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Ward, Smith & Hill, PLLC | Law Firm | Representing 4web, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Wilson, Robertson & Vandeventer, PC | Law Firm | Representing 4web, Inc.Search in Eureka ↗ |
| Defendant counsel | Alicia Lai | Attorney | Counsel for Nuvasive, Inc.Search in Eureka ↗ |
| Defendant counsel | Earl Glenn Thames | Attorney | Counsel for Nuvasive, Inc.Search in Eureka ↗ |
| Defendant counsel | John Pierre Lahad | Attorney | Counsel for Nuvasive, Inc.Search in Eureka ↗ |
| Defendant counsel | Mark H Hatch-Miller | Attorney | Counsel for Nuvasive, Inc.Search in Eureka ↗ |
| Defendant counsel | Michael E. Jones | Attorney | Counsel for Nuvasive, Inc.Search in Eureka ↗ |
| Defendant counsel | Shaun William Hassett | Attorney | Counsel for Nuvasive, Inc.Search in Eureka ↗ |
| Defendant law firm | Potter Minton PC | Law Firm | Representing Nuvasive, Inc.Search in Eureka ↗ |
| Defendant law firm | Susman Godfrey LLP | Law Firm | Representing Nuvasive, Inc.Search in Eureka ↗ |
| Defendant law firm | Susman Godfrey LLP (Houston) | Law Firm | Representing Nuvasive, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Rodney Gilstrap | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The termination record reflects a purely procedural outcome: the Eastern District of Texas ordered an interdistrict transfer to the Southern District of California without ruling on any substantive patent claim. The phrasing ‘interdistrict transfer’ confirms that jurisdiction and venue — not the merits of infringement or validity — were the sole issues resolved in Texas. Both parties carry all claims, defences, and counterclaims into the new forum, and the litigation clock effectively resets under Southern District of California local patent rules.
US10849756B2 — Programmable spinal and orthopedic implant systems
The asserted portfolio centres on programmable implant architecture — a design paradigm in which implant geometry, including truss structures, curved struts, and non-planar surfaces, is engineered to optimise load distribution and bone integration. US10849756B2 (application US15/991272) is among the more recently filed members of the family, reflecting continued R&D iteration. The portfolio spans application dates ranging from the early 2010s through the late 2010s, indicating a sustained and layered prosecution strategy across multiple implant configurations and use cases including spinal fusion and traumatic fracture repair.
For spinal implant manufacturers, a portfolio of this breadth — covering geometry, interface systems, and surgical methods — creates a wide assertion surface. 4web’s truss implant patents in particular reflect proprietary structural approaches that may read on competing products using similar lattice or strut-based interbody designs. Any company developing or commercialising spinal interbody devices, bone repair systems, or programmable implant platforms should treat this portfolio as active enforcement risk, particularly given 4web’s demonstrated willingness to pursue multi-patent litigation.
Should your team run an FTO against 4web’s spinal implant portfolio?
If your organisation designs, manufactures, or distributes spinal interbody implants, programmable orthopedic devices, or bone fracture repair systems with truss, lattice, or arced strut geometries, the 11 patents asserted in this case represent a material FTO risk. The portfolio’s breadth — spanning surface geometry, strut configuration, interface systems, and surgical methods — means that a product clearance analysis focused on a single patent is insufficient. R&D and product teams should map their device geometries against the independent claims of each asserted patent before launch or design iteration.
PatSnap Eureka’s FTO Search Agent can rapidly cluster the 11 asserted patents by claim type, identify the broadest independent claims, and surface prior art or design-around pathways. Eureka’s prosecution history analysis can also flag any claim amendments that may narrow scope — critical context before investing in a design-around. Teams can run a targeted FTO across the full 4web portfolio in a fraction of the time required by manual review.
Run a freedom-to-operate analysis on US10849756B2 to assess your product’s exposure
Run FTO in Eureka →Similar spinal implant patent cases in E.D. Texas and S.D. California
Browse related orthopedic and spinal implant patent infringement actions litigated in E.D. Texas and transferred to or filed in S.D. California federal courts.
What this case signals for the spinal implant IP landscape
Eleven asserted patents and a successful venue transfer create several actionable signals for orthopedic device companies and IP teams.
E.D. Texas transfer risk is real even after 13+ months of litigation
This case closed in Texas after 413 days without a merits ruling — a reminder that even well-advanced E.D. Texas cases can be transferred. Defendants with strong home-district ties should file § 1404(a) motions early and with granular factual support. Waiting until after claim construction has occurred rarely improves the odds.
4web’s 11-patent portfolio signals aggressive enforcement posture
Asserting 11 patents in a single complaint is a resource-intensive strategy that typically indicates high confidence in the portfolio’s breadth and a desire to maximise settlement leverage. Competitors in programmable spinal and orthopedic implant technology should audit their product lines against 4web’s portfolio — particularly the truss geometry and programmable implant claims — regardless of the transfer outcome.
4web v Nuvasive — key questions answered
The case was terminated in E.D. Texas via an interdistrict transfer to the Southern District of California on June 11, 2024. Transfer under 28 U.S.C. § 1404(a) typically occurs when the court finds the transferee district is clearly more convenient. NuVasive is headquartered in San Diego, CA — within the Southern District — which likely supported the convenience analysis. No merits ruling was issued in Texas.
4web asserted 11 US patents covering programmable spinal and orthopedic implant technology. The portfolio spans implant devices with non-planar surfaces, curved or arced struts, truss-based implant geometry, implant interface systems, and traumatic bone fracture repair methods. Key patents include US10849756B2, US9757235B2, US9987137B2, US9999516B2, US9636226B2, and six additional patents filed across a multi-year prosecution campaign.
No. An interdistrict transfer is a procedural mechanism — all substantive claims, counterclaims, and defences transfer intact to the new forum. 4web retains all 11 patent claims against NuVasive; the Southern District of California will adjudicate infringement and validity on the merits. The transfer affects scheduling, local rules, and the presiding judge, not the underlying IP rights.
Judge Rodney Gilstrap of the Eastern District of Texas presided over the case during its Texas phase. Following the interdistrict transfer to the Southern District of California, a new judge in that district will be assigned. Judge Gilstrap is one of the most experienced patent trial judges in the US and frequently handles transfer motions under § 1404(a).
Yes. An interdistrict transfer does not affect NuVasive’s ability to file inter partes review petitions at the USPTO Patent Trial and Appeal Board. With 11 patents asserted, NuVasive — or any third party — has a broad surface area for IPR petitions. Statutory time bars under 35 U.S.C. § 315(b) apply based on service of the district court complaint, so the filing date of April 25, 2023 is the reference point for any IPR deadline calculations.
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