After 560 days of litigation in the Eastern District of Texas, Network System Technologies, LLC’s patent infringement action against Texas Instruments Incorporated and co-defendants Audi AG, Ford Motor Company, and Volkswagen AG concluded on July 1, 2024 with a joint dismissal with prejudice. The parties filed a Joint Motion to Dismiss confirming they had resolved all claims between plaintiff NST and defendant TI, with NST’s infringement claims dismissed with prejudice and TI’s counterclaims dismissed without prejudice — each side bearing its own attorneys’ fees and costs. Six patents covering on-chip network interconnect and multiprocessor communication architectures were asserted across a broad product landscape including automotive infotainment systems, IoT devices, and consumer electronics.

This case carries significant strategic weight for IP professionals operating at the intersection of semiconductor IP and automotive supply chains. The involvement of major automotive OEMs as co-defendants alongside a chip supplier illustrates the expanding reach of system-on-chip patent assertions into end-product manufacturers. For patent counsel, in-house IP teams at Tier 1 automotive suppliers, and R&D engineers designing products around TI’s Jacinto and SimpleLink processor families, the settlement outcome — and the breadth of patents asserted — demands careful portfolio monitoring and freedom-to-operate analysis.

Case Overview

The Parties

The Patents at Issue

The six asserted patents — US7594052B2, US8072893B2, US7373449B2, US7366818B2, US7769893B2, and US8086800B2 — collectively cover architectures for network-on-chip (NoC) interconnect systems used inside multiprocessor integrated circuits, including methods for routing data between processor cores, managing memory access, and coordinating communication across complex system-on-chip designs. These technologies are foundational to modern high-performance SoCs used in automotive infotainment, wireless IoT devices, mobile computing, and augmented reality hardware. The patents specifically target interconnect fabric implementations consistent with Arteris-derived NoC technology embedded in TI’s Jacinto (OMAP, TDA, DRA families) and SimpleLink (CC26xx, CC13xx) processors.

• • US7594052B2
• • US8072893B2
• • US7373449B2
• • US7366818B2
• • US7769893B2
• • US8086800B2

Legal Representation

Plaintiff Counsel: Nixon Peabody LLP; Nixon Peabody LLP (Los Angeles); The Davis Firm PC (Longview) (lead: Allison Strong)
Defendant Counsel: Covington & Burling LLP; Covington & Burling, LLP (Palo Alto); Covington & Burling LLP (Redwood Shores); Covington & Burling, LLP (San Francisco); Covington & Burling, LLP (Washington DC); The Roth Law Firm PC; Ward, Smith & Hill, PLLC (lead: Amanda Aline Abraham)

Litigation Timeline & Procedural History

The case was filed on December 19, 2022 in the United States District Court for the Eastern District of Texas, Marshall Division, before Chief Judge Robert W. Schroeder III — one of the nation’s most patent-active federal venues, known for its patent-friendly procedural norms, experienced bench, and plaintiff-favorable case management. The Eastern District of Texas has historically attracted a high volume of NPE-initiated patent suits, and this filing fits that pattern: a patent assertion entity targeting a major semiconductor supplier and its downstream OEM customers in a single coordinated action.

The case ran for 560 days before closing on July 1, 2024 — a duration consistent with active patent litigation that progressed through substantive pretrial proceedings before resolving via settlement rather than trial. The termination via Joint Motion to Dismiss at Docket No. 275 reflects a negotiated resolution: NST’s affirmative infringement claims against TI were dismissed with prejudice, foreclosing any re-filing of the same claims, while TI’s counterclaims — likely including invalidity defenses — were dismissed without prejudice, preserving TI’s ability to challenge the patents in future proceedings. No damages award, injunction, or judicial claim construction ruling was entered.

The Verdict & Legal Analysis

Outcome

The Court granted the parties’ Joint Motion to Dismiss on July 1, 2024. NST’s infringement claims against Texas Instruments were dismissed with prejudice, permanently resolving those claims between the parties, while TI’s counterclaims were dismissed without prejudice. No public damages award, royalty determination, or injunctive relief was entered by the Court, and no claim construction or validity rulings were issued on the merits of the six asserted patents. The resolution strongly implies a confidential licensing or settlement payment was reached between NST and TI prior to the dismissal filing.

Verdict Cause Analysis

The dismissal with prejudice following a negotiated settlement reflects several converging legal and strategic dynamics in multi-defendant NPE patent litigation

• NST asserted six network-on-chip interconnect patents against TI and three major automotive OEMs, creating a high-stakes, high-cost litigation posture that made settlement economically rational for all parties involved.
• TI’s counterclaims being dismissed without prejudice — rather than with prejudice — signals that TI preserved its invalidity and other defenses as leverage in any future NST assertions against other parties or products using similar interconnect technology.
• The broad product scope of the complaint, encompassing automotive infotainment systems, IoT devices, mobile phones, VR/AR wearables, and Chromebooks, created significant financial exposure that likely accelerated settlement negotiations.
• The Eastern District of Texas venue, combined with NST’s representation by Nixon Peabody LLP and The Davis Firm — experienced NPE litigation counsel — created a credible litigation threat that TI and its OEM co-defendants would have assessed as costly to litigate through trial.

Legal Significance

1. 1. Because the case settled before any claim construction or Markman ruling, the scope of NST’s six network-on-chip patents remains judicially unconstrued in federal court, leaving their claim boundaries available for future assertion against other semiconductor companies or OEMs incorporating Arteris-derived interconnect technology.
2. 2. TI’s counterclaims being dismissed without prejudice preserves the legal record for potential inter partes review (IPR) petitions or declaratory judgment actions should NST assert these patents in future litigation, giving the semiconductor industry a potential coordinated defense pathway.
3. 3. The multi-defendant structure — targeting both the chip supplier (TI) and downstream OEM customers (Audi, Ford, Volkswagen) — reflects an increasingly common NPE strategy of applying supply-chain pressure simultaneously at the component and end-product levels, a tactic with significant implications for how automotive companies structure their IP indemnification agreements with semiconductor suppliers.

Strategic Takeaways

For Patent Attorneys:

• When representing semiconductor suppliers facing multi-OEM co-defendant structures, negotiate joint defense agreements early and align invalidity contentions across the supply chain to present a unified claim construction and prior art strategy.
• The dismissal of TI’s counterclaims without prejudice is a significant negotiated outcome — counsel should routinely seek this structure in settlement terms to preserve IPR petition rights and future declaratory judgment standing.
• NST’s six-patent portfolio targeting Arteris NoC interconnect implementations warrants a comprehensive prior art search and IPR petition readiness analysis for any company incorporating similar on-chip interconnect architectures.
• Nixon Peabody LLP’s involvement as plaintiff counsel signals a sophisticated NPE litigation posture; defense teams should anticipate well-developed infringement contentions and prepare robust Daubert and claim construction challenges at the earliest opportunity.

For IP Professionals:

• In-house IP teams at automotive OEMs and Tier 1 suppliers should audit their semiconductor procurement agreements to confirm that chip vendors like TI provide adequate IP indemnification covering patent assertions targeting integrated circuits incorporated into end products.
• NST’s active assertion of network-on-chip patents across automotive, IoT, mobile, and AR/VR product categories signals a broad licensing campaign; monitor NST’s portfolio and litigation activity to anticipate potential demand letters targeting your company’s products.

For R&D Teams:

• Engineering teams developing products incorporating TI Jacinto (OMAP, TDA, DRA) or SimpleLink (CC26xx, CC13xx) processors should conduct FTO analysis against NST’s six asserted patents — particularly US7594052B2, US8086800B2, and US8072893B2 — before finalizing SoC selection for next-generation automotive or IoT platforms.
• R&D leaders evaluating on-chip network interconnect architectures should document design choices that diverge from the claim limitations of NST’s NoC patents, particularly regarding data routing protocols and memory access coordination methods, to support future design-around arguments.