Cambria v. LX Hausys: ITC Stay Halts Quartz Surface Patent Case
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📋 Case Summary
| Case Name | Cambria Company, LLC v. LX Hausys Ltd |
| Case Number | 4:26-cv-00043 (N.D. Tex.) |
| Court | U.S. District Court for the Northern District of Texas, stayed pending ITC Investigation No. 337-TA-1482 |
| Duration | Dec 2025 – Feb 2026 61 days |
| Outcome | Stay Granted / Case Administratively Closed |
| Patents at Issue | |
| Accused Products | “Calacatta Affogato” processed slab |
Case Overview
The Parties
⚖️ Plaintiff
Privately held, Minnesota-based manufacturer of engineered quartz surfaces, regarded as a leading domestic producer of premium quartz countertops and slabs.
🛡️ Defendant
South Korean company specializing in building materials including engineered stone surfaces, competing directly with Cambria in the North American quartz surface market.
Patents at Issue
This case involved three U.S. patents covering quartz surface manufacturing technology. These patents collectively form a portfolio directed at proprietary methods and compositions involved in producing high-aesthetic quartz slabs.
- • US10195762B2 — relating to engineered quartz surface manufacturing processes
- • US10252440B2 — covering related surface fabrication technology
- • US12370718B2 — a more recent patent in the same technology family
Are you in the engineered stone industry?
Check if your product or manufacturing process might infringe these or related patents.
The Verdict & Legal Analysis
Outcome
On February 18, 2026, Chief Judge Reed O’Connor granted Defendant LX Hausys’s unopposed motion to stay all district court deadlines pending final resolution of ITC Investigation No. 337-TA-1482. The court ordered the parties to file a status report upon ITC resolution and directed the clerk to administratively close the case. No damages were awarded, no injunction was issued, and no merits determination was made at the district court level.
Verdict Cause Analysis: The § 1659 Stay Mechanism
The legal basis for the stay is 28 U.S.C. § 1659, which mandates that a district court stay proceedings involving the same issues as a pending ITC investigation upon timely request by a respondent. The unopposed nature of the motion is procedurally significant; Cambria’s decision not to contest the stay suggests strategic alignment with the ITC forum, likely because ITC proceedings offer a potentially more powerful remedy: exclusion orders barring importation of LX Hausys products into the United States.
Legal Significance: ITC vs. District Court Strategy
This case illustrates a well-established but sophisticated patent enforcement pattern: filing parallel ITC and district court actions simultaneously, then allowing the ITC proceeding to take precedence on the merits while preserving district court jurisdiction for eventual damages recovery (which the ITC cannot award). The ITC’s Section 337 investigations are particularly potent against foreign manufacturers due to their accelerated schedule and ability to issue exclusion orders.
Freedom to Operate (FTO) Analysis
This case highlights critical IP risks in the engineered quartz surface industry. Choose your next step:
📋 Understand This Case’s Impact
Learn about the specific risks and implications from this litigation.
- View all related patents in this technology space
- See which companies are most active in surface material patents
- Understand claim construction patterns for engineered stone
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High Risk Area
Engineered quartz surface manufacturing & aesthetics
3 Related Patents
In this specific case (Cambria’s portfolio)
Design-Around Options
Strategic alternatives often available
✅ Key Takeaways
§ 1659 mandatory stays are powerful tools for ITC respondents; filing unopposed preserves judicial resources and focuses defense.
Search related case law →Parallel ITC + district court strategies remain the gold standard for enforcement against foreign manufacturers.
Explore ITC strategies →Administrative closure ≠ dismissal; monitor ITC docket for reopening triggers for post-ITC damages claims.
Track ITC dockets →Continuation patent families (as seen here across three patents) create durable enforcement portfolios — audit competitor continuation activity.
Analyze patent families →ITC exclusion orders are increasingly the primary remedy sought in import-based infringement disputes, offering powerful market protection.
Monitor ITC investigations →Frequently Asked Questions
Three U.S. patents: US10195762B2, US10252440B2, and US12370718B2 — all directed to engineered quartz surface technology.
The court granted an unopposed stay under 28 U.S.C. § 1659, pausing the district court case pending resolution of parallel ITC Investigation No. 337-TA-1482.
No. The court retains jurisdiction. The case can be reopened — particularly for damages proceedings — after the ITC investigation concludes.
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References
- Cornell Legal Information Institute — 28 U.S.C. § 1659
- USITC Active Investigations — Investigation No. 337-TA-1482
- USPTO Patent Full-Text Database
- USITC — Section 337 FAQs
- PatSnap — IP Intelligence Solutions for Law Firms
This article is for informational purposes only and does not constitute legal advice. All case information is drawn from publicly available court records. For platform capabilities, visit PatSnap.