"Dual-track" means parallel pressure in two forums. In district court, a plaintiff usually seeks damages and a court injunction. At the ITC under 19 U.S.C. 1337, a complainant asks the Commission to investigate unfair imports and, if successful, to issue exclusion and cease-and-desist orders that affect U.S. importation. Damages live in district court; border and inventory remedies live at the ITC. The ITC is a parallel forum for patent owners, while PTAB review and reexamination are Patent Office tools for accused infringers.

Why companies run both

  • District court can award damages; the ITC remedy centers on importation and related cease-and-desist relief, not money damages.
  • ITC investigations run on a faster statutory target-date clock than many district dockets.
  • Respondents and supply-chain parties face different leverage in each forum, including domestic-industry and public-interest issues at the ITC.
  • After Kyocera, LEO reach against downstream customers usually requires naming them as respondents or proving a GEO under 1337(d)(2).

Receipt notice vs institution, and the 1659 stay

Filing starts a preinstitution proceeding under 19 CFR 210.8. Under 19 CFR 210.10, the Commission generally decides whether to institute within 30 days after the complaint is filed, subject to stated exceptions. A Federal Register notice of receipt of complaint means the Commission received a complaint and is often soliciting public-interest comments. It is not institution. Institution is the later Commission decision, published in the Federal Register, that opens a numbered investigation. Until institution, treat DN numbers as complaint receipts, not live exclusion-order cases.

Once both forums are live, 28 U.S.C. 1659 lets a district defendant who is also an ITC respondent obtain a mandatory stay of district claims involving the same issues, if the request is timely (generally within 30 days after being named as a respondent, or after the district action is filed, whichever is later). The stay lasts until the Commission determination becomes final. That is why dual-track campaigns often feel like an ITC sprint beside a paused damages case.

Board examples

Vicor's September 2026 Texas suits on vertical power delivery sit beside ITC DN 3936 (receipt published September 14, 2026) against overlapping power and computing supply-chain respondents. trinamiX sued Apple in Midland on September 3, 2026, and the Commission published a September 9 receipt notice (issued September 4) for DN 3934 naming Apple as the sole respondent on mobile devices and cameras. BoomCloud 360 now has an instituted ITC investigation (337-TA-1521, instituted September 15, 2026) against Apple, Samsung, and Google on the Midland patent trio, beside Southern District of California declaratory-judgment and Midland district tracks. Open those campaign and case pages for dockets, patents, and status.

What to watch on dual-track matters

Watch whether the Commission institutes, which patents and respondents appear in the institution notice, and whether temporary relief is requested. Watch whether district defendants timely seek a 1659 stay. Watch how domestic-industry and public-interest briefing develops, including economic-prong issues after Lashify (Fed. Cir. Mar. 5, 2025). Watch whether district and ITC patent lists stay aligned, and whether complainants plead GEO theories or lean on LEO-plus-CDO packages after Kyocera.

Where should you read next? See the sue-both-forums FAQ, the choose-district-or-ITC FAQ, the exclusion-order FAQ, and the ITC complaint FAQ for response and default rules. Outside this site, read 19 U.S.C. 1337, 28 U.S.C. 1659, and 19 CFR 210.8, 210.10, and 210.13.