October Term 2006 · Docket 05-1056

Does shipping software code abroad violate U.S. patent law?

Microsoft and AT&T dispute whether sending digital code overseas counts as exporting components.

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Microsoft Corp. v. AT&T Corp.
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Verified source milestones

  1. — An official oral-argument transcript was verified.

The arguments, in order

This case may have been argued more than once. Each entry below uses that session's official transcript. Later arguments do not erase earlier ones.

  1. Argument 1 ·

    What happened at the argument

    Microsoft's counsel argued that patent law protects against making components in the U.S.

    AT&T's counsel argued that Microsoft supplies the precise machine-readable sequence of commands.

    Justice Kennedy asked if the disk, not the information, is the component.

    Read the official transcript for this argument · Official argument details

    Sources used for this argument breakdown

A citizen's guide to the whole case

What this case is about

Microsoft argues that digital code is not a physical component. AT&T argues that the code itself is the critical component.

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How the case got here

The Supreme Court heard oral argument in this case on February 21, 2007.

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What each side wants

Microsoft wants the Court to rule that digital code is not a component.

AT&T wants the Court to rule that digital code is a component.

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What each side says

Microsoft argues that Section 271(f) covers only physical parts shipped abroad.

AT&T argues that the object code is the critical component sent from the U.S.

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What the justices asked

Justice Scalia asked if precedent exists for the parties' stipulation.

Justice Scalia asked if a bet on a court outcome creates standing.

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Why it matters

This case defines the scope of U.S. patent law for digital products. It determines whether companies can avoid liability by sending code abroad. The outcome shapes global software distribution and patent enforcement.

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What happens next

This article currently covers the argument record. Use the official docket link for later case activity.

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Official Court provenance

Official docket and case history · Official Supreme Court oral-argument detail page

Title and summary sources

Revision history

  1. Revision 1 · Official Transcript ·

    Correction: Rewritten to the concise citizen-facing editorial standard.

  2. Revision 2 · Official Transcript ·

    Correction: Migrated to the dated official Court activity contract without model use.

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