US launches Section 337 investigation into 20 companies; Luxshare Precision, Foxconn, Delta Electronics caught up in AI power supply patent dispute
The USITC launched a Section 337 investigation into 20 companies, including Luxshare Precision, Foxconn, and Delta Electronics, over alleged patent infringement by Vicor Corporation. The case involves vertical power transmission systems used in AI and data center servers. Vicor seeks exclusion and cease-and-desist orders. The investigation could impact the AI server supply chain and US market access for the accused products.
How this was made
The 30-second read
Why it matters
The investigation could lead to exclusion orders that block infringing products from the U.S., affecting supply chains for AI accelerators.
Market read
First‑report of a major trade‑secret investigation that could disrupt AI server component supply chains and affect multiple listed firms.
What to watch
Potential for settlement or licensing agreements that could mitigate long‑term damage to respondents.
Background
The USITC has opened a Section 337 investigation into 20 companies over alleged patent infringement in vertical power transmission systems used in AI servers.
Ticker impact
Vicor Corp filed the Section 337 complaint and is seeking exclusion orders, making it directly involved in the investigation.
likely modest pressure as investors assess litigation outcome
The investigation could lead to exclusion orders that affect competitors, but Vicor itself is the complainant and may benefit from a favorable ruling.
Flex Ltd. is named among the 20 respondents in the USITC Section 337 case.
likely pressure as litigation risk is priced in
As a respondent, Flex could be subject to exclusion orders that limit its ability to sell certain power‑delivery products in the U.S.
Market effects
AI server and data‑center power‑supply sector faces heightened regulatory risk, potentially tightening margins.
U.S. and Asian semiconductor exporters may see increased scrutiny and short‑term volatility.
The case could set precedent for future Section 337 actions affecting global tech supply chains.
Counterpoint
If the investigation stalls or results in a narrow ruling, the market impact may be limited, offering buying opportunities on affected stocks.
Key entities
- CompanyVicor Corporation
Complainant filing the Section 337 complaint.
- CompanyMonolithic Power Systems
US‑based semiconductor firm named as a respondent.
- CompanyFlex Ltd.
U.S. electronics manufacturing services provider named as a respondent.



