Impinj vs. NXP USA: RFID Patent Dispute Ends in Voluntary Dismissal at Federal Circuit
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📋 Case Summary
| Case Name | Impinj, Inc. v. NXP USA, Inc. |
| Case Number | 24-1045 (Fed. Cir.) |
| Court | Federal Circuit, Appeal from N.D. Cal. |
| Duration | 150 days (Oct 2023 – Mar 2024) 5 months |
| Outcome | Voluntary Dismissal |
| Patents at Issue | |
| Accused Products | NXP UCODE 7 and UCODE 8 ICs |
Case Overview
The Parties
⚖️ Plaintiff
Seattle-based semiconductor and software company widely recognized as a global leader in RAIN RFID technology with an extensive IP portfolio.
🛡️ Defendant
A subsidiary of NXP Semiconductors N.V., a major multinational semiconductor manufacturer with a significant RFID product line.
The Patents at Issue
The litigation involved 23 U.S. patents covering RFID integrated circuit technologies, including signal processing, power management, communication protocols, and tag functionality. These patents span application numbers filed from the mid-2000s through the mid-2010s.
- • US8390431 — RFID Integrated Circuits
- • US8952792 — Communication Protocols
- • US7307528 — Power Management
- • US9031504 — Signal Processing
- • US9349090 — Tag Functionality
- • US9460380 — Data Handling
- • US10002266 — Antenna Interface
- • US9633302 — Memory Architecture
- • US10116033 — Transponder Design
- • US7733227 — RFID Systems
Developing a new RFID product?
Check if your RFID IC design might infringe these or related patents before launch.
The Verdict & Legal Analysis
Outcome
The Federal Circuit dismissed Case No. 24-1045 pursuant to Fed. R. App. P. 42(b), the procedural rule governing voluntary dismissals upon stipulation of the parties. No damages were awarded, no injunctive relief was granted or denied, and no merits determination was issued. Specific settlement terms, if any, were not disclosed in the public record.
Key Legal Issues
The underlying cause of action was a patent infringement claim, with Impinj asserting that NXP’s UCODE 7 and UCODE 8 ICs infringed its portfolio of 23 RFID-related patents. While the Federal Circuit proceeding ended without adjudication, the breadth of the patent portfolio asserted — 23 patents covering diverse technical aspects of RFID IC design — suggests a comprehensive assertion strategy aimed at creating significant licensing pressure or litigation risk for NXP.
Because the dismissal was entered without a merits ruling, Case No. 24-1045 carries no direct precedential value on questions of patent validity, claim construction, or infringement in the RFID space.
Freedom to Operate (FTO) Analysis
This case highlights critical IP risks in RFID IC design. Choose your next step:
📋 Understand This Case’s Impact
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- View all 23 asserted patents in this technology space
- See which companies are most active in RFID patents
- Understand claim construction patterns in similar cases
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High Risk Area
RFID ICs covering power management, backscatter modulation
23 Asserted Patents
In RFID IC technology space
Design-Around Options
Available for most claims
✅ Key Takeaways
Voluntary dismissal under Fed. R. App. P. 42(b) with each party bearing costs strongly suggests a confidential settlement or cross-license resolution.
Search related case law →Multi-patent portfolio assertions (23 patents here) are an increasingly common strategy to create comprehensive litigation pressure and complicate invalidity campaigns.
Explore precedents →Appellate-stage settlements remain viable even in large, complex patent disputes — monitor settlement windows throughout the Federal Circuit briefing schedule.
Understand appellate strategy →Frequently Asked Questions
The case involved 23 U.S. patents, including US8390431, US8952792, US7307528, US9031504, US9349090, US9460380, US10002266, US9633302, US10116033, and US7733227, among others, all related to RFID integrated circuit technology.
The parties jointly stipulated to dismissal under Fed. R. App. P. 42(b), with each side bearing its own costs. While no official reason was disclosed, this procedural outcome is consistent with a negotiated settlement or licensing agreement reached between the parties.
The case reinforces the value of large-portfolio assertion strategies in RFID semiconductor litigation and signals that appellate-stage resolutions — potentially including cross-licensing — remain a common outcome in high-stakes IP disputes between major RFID IC competitors.
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References
- PACER Case Locator — Case No. 24-1045
- United States Court of Appeals for the Federal Circuit — Opinions
- USPTO Patent Full-Text Database
- Cornell Legal Information Institute — Fed. R. App. P. 42(b)
- 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.