United States v. Microsoft Corp.
E436009
United States v. Microsoft Corp. was a major U.S. antitrust lawsuit in the late 1990s and early 2000s that challenged Microsoft's dominance in the personal computer operating systems market, particularly its practices related to bundling Internet Explorer with Windows.
All labels observed (1)
| Label | Occurrences |
|---|---|
| United States v. Microsoft Corp. canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4397656 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: United States v. Microsoft Corp. Context triple: [Sherman Antitrust Act, landmarkCase, United States v. Microsoft Corp.]
-
A.
Microsoft Corp. v. United States
Microsoft Corp. v. United States is a landmark legal case in which the U.S. government’s authority to compel a technology company to produce customer data stored on foreign servers under U.S. law was contested.
-
B.
United States v. AT&T
United States v. AT&T was a landmark antitrust lawsuit in which the U.S. government forced the breakup of the Bell System telecommunications monopoly in the early 1980s.
-
C.
MCI v. AT&T
MCI v. AT&T was a landmark U.S. antitrust lawsuit in the telecommunications industry that challenged AT&T’s monopoly and helped open the long-distance market to competition.
-
D.
EU–US Privacy Shield
The EU–US Privacy Shield was a transatlantic data transfer framework that governed how companies could legally move personal data from the European Union to the United States while aiming to ensure adequate privacy protections.
-
E.
United States v. Edward Snowden
United States v. Edward Snowden is the U.S. criminal case in which former NSA contractor Edward Snowden was charged for leaking classified surveillance documents, leading to international debates over government secrecy and privacy.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: United States v. Microsoft Corp. Target entity description: United States v. Microsoft Corp. was a major U.S. antitrust lawsuit in the late 1990s and early 2000s that challenged Microsoft's dominance in the personal computer operating systems market, particularly its practices related to bundling Internet Explorer with Windows.
-
A.
Microsoft Corp. v. United States
Microsoft Corp. v. United States is a landmark legal case in which the U.S. government’s authority to compel a technology company to produce customer data stored on foreign servers under U.S. law was contested.
-
B.
United States v. AT&T
United States v. AT&T was a landmark antitrust lawsuit in which the U.S. government forced the breakup of the Bell System telecommunications monopoly in the early 1980s.
-
C.
MCI v. AT&T
MCI v. AT&T was a landmark U.S. antitrust lawsuit in the telecommunications industry that challenged AT&T’s monopoly and helped open the long-distance market to competition.
-
D.
EU–US Privacy Shield
The EU–US Privacy Shield was a transatlantic data transfer framework that governed how companies could legally move personal data from the European Union to the United States while aiming to ensure adequate privacy protections.
-
E.
United States v. Edward Snowden
United States v. Edward Snowden is the U.S. criminal case in which former NSA contractor Edward Snowden was charged for leaking classified surveillance documents, leading to international debates over government secrecy and privacy.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
United States federal court case
ⓘ
antitrust lawsuit ⓘ |
| accusation |
attempted monopolization of the web browser market
ⓘ
illegal tying of web browser to operating system ⓘ monopolization of the personal computer operating systems market ⓘ |
| appealCourt | United States Court of Appeals for the District of Columbia Circuit NERFINISHED ⓘ |
| appealOutcome |
affirmed monopoly finding
ⓘ
reversed some liability findings ⓘ vacated breakup remedy ⓘ |
| country | United States of America ⓘ |
| court | United States District Court for the District of Columbia NERFINISHED ⓘ |
| decisionDate | 2001-06-28 ⓘ |
| defendant | Microsoft Corporation NERFINISHED ⓘ |
| finding |
Microsoft engaged in anticompetitive conduct
ⓘ
Microsoft held monopoly power in the PC operating system market ⓘ Microsoft violated Section 2 of the Sherman Antitrust Act ⓘ |
| fullName | United States v. Microsoft Corporation NERFINISHED ⓘ |
| impact |
influenced later technology antitrust enforcement
ⓘ
shaped legal analysis of software tying and bundling ⓘ |
| initialDecisionDate | 2000-06-07 ⓘ |
| initialRemedy |
order to break Microsoft into two separate companies
ⓘ
structural breakup of operating systems and applications businesses ⓘ |
| judge | Thomas Penfield Jackson NERFINISHED ⓘ |
| jurisdiction |
United States of America
ⓘ
surface form:
United States
|
| keyIssue |
bundling Internet Explorer with Windows
ⓘ
exclusion of rival web browsers ⓘ maintenance of operating system monopoly ⓘ use of restrictive contracts with Internet service providers ⓘ use of restrictive contracts with OEMs ⓘ |
| legalArea |
antitrust law
ⓘ
competition law ⓘ |
| notableCompetitorInCaseNarrative | Netscape Navigator NERFINISHED ⓘ |
| plaintiff |
20 U.S. state attorneys general
ⓘ
United States Department of Justice NERFINISHED ⓘ |
| relatedConcept | browser wars ⓘ |
| relevantMarket | Intel-compatible personal computer operating systems ⓘ |
| relevantProduct |
Internet Explorer
NERFINISHED
ⓘ
Microsoft Windows NERFINISHED ⓘ |
| remedy |
behavioral remedies instead of breakup
ⓘ
creation of a technical committee to monitor compliance ⓘ requirements to share certain APIs with third-party developers ⓘ restrictions on exclusive dealing contracts ⓘ |
| sectionApplied |
Section 1 of the Sherman Act
NERFINISHED
ⓘ
Section 2 of the Sherman Act NERFINISHED ⓘ |
| settlement | consent decree between Microsoft and U.S. government ⓘ |
| settlementDate | 2001-11-02 ⓘ |
| startDate | 1998-05-18 ⓘ |
| statute | Sherman Antitrust Act NERFINISHED ⓘ |
| timePeriod |
early 2000s
ⓘ
late 1990s ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: United States v. Microsoft Corp. Description of subject: United States v. Microsoft Corp. was a major U.S. antitrust lawsuit in the late 1990s and early 2000s that challenged Microsoft's dominance in the personal computer operating systems market, particularly its practices related to bundling Internet Explorer with Windows.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.