​
API Description

Query US patent litigation data.
This API provides real-time, comprehensive access to US patent litigation case details and historical timeline data.
The PACER API allows querying via a Patent Number, Company Name (Plaintiff/Defendant), or Case Number as search criteria to retrieve structured matching case dockets and complete chronological event timelines (Timeline Records).
Key Highlight: Designed to seamlessly complement our existing WIPO API. Applications can chain the two interfaces together—using the WIPO API to identify patent numbers with potential infringement risks, and then leveraging this interface to locate corresponding lawsuits in the US—establishing a true end-to-end data workflow.

🤖 Pulling this data to power an AI Agent? Instead of writing custom parsing code, leverage our MCP Server to grant your AI workspace native, real-time access to Amazon, SERP, WIPO and PACER data—automating cross-border e-commerce compliance and intellectual property (IP) risk assessments with zero integration friction.

​
Request URL

POST https://scrapeapi.pangolinfo.com/api/v3/pacer

​
Request Headers

ParametersParameter valueTypeDescription
Content-Typeapplication/jsonstringData format
AuthorizationBearer xxxstringAuthorization Token

​
Request Parameters

ParametersRequiredTypeDescription
patentNumberOne of threestringPatent number (exact match)
companyNameOne of threestringPlaintiff/Defendant company name (prefix match)
caseNumberOne of threestringCourt case number, e.g. 3:90-cv-00003
fromNointCase pagination offset, default 0
sizeNointCases per page, default 10
entrySizeNointTimeline records returned inline per case, default 50
At least one of patentNumber, companyName, or caseNumber is required. When multiple are provided, results are combined with AND (intersection).

​
Response value

Return valueTypeDescription
codeintStatus code; 0 indicates success
messagestringStatus message
dataobjectResponse payload; see fields below
data.totalintTotal number of matching cases
data.hitsarrayList of case dockets; each element is a case object (fields below)

​
data.hits[] case object fields

FieldTypeDescription
docketIdlongUnique case ID (docket id)
docketNumberstringCourt case number, e.g. 1:13-cv-00116
pacerCaseIdstringPACER case ID
caseNamestringCase name
courtstringFull court name
courtIdstringCourt identifier, e.g. txwd
assignedTostringPresiding judge
suitNaturestringNature of suit, e.g. 830 Patent
jurisdictionstringJurisdiction type
statusstringCase status: active / terminated
dateFiledstringFiling date
dateTerminatedstringTermination date; null if not terminated
partiesarrayList of party (plaintiff/defendant) names
patentNumbersarrayList of patent numbers involved in the case
entryTotalintTotal number of timeline records for the case
entriesarrayLitigation event timeline (chronological), up to entrySize records; fields below

​
entries[] timeline record fields

FieldTypeDescription
documentNumberstringDocument number; null for some entries without a number
dateFiledstringEvent date, e.g. Feb 8, 2013
descriptionstringFull event description
documentHrefstringDocument link; may be null
pdfUrlstringPDF link; may be empty
patentNumbersarrayList of patent numbers associated with this event

​
Request example

curl https://scrapeapi.pangolinfo.com/api/v3/pacer \
  --request POST \
  --header 'Authorization: ' \
  --header 'Content-Type: application/json' \
  --data '{
  "patentNumber": "6424636",
  "from": 0,
  "size": 10,
  "entrySize": 50
}'

​
Return example

{
  "code": 0,
  "message": "ok",
  "data": {
    "total": 1,
    "hits": [
      {
        "docketId": 4400908,
        "docketNumber": "1:13-cv-00116",
        "pacerCaseId": "605756",
        "caseName": "Intellectual Ventures II LLC v. AT&T Corp.",
        "court": "District Court, W.D. Texas",
        "courtId": "txwd",
        "assignedTo": "Lee Yeakel",
        "suitNature": "830 Patent",
        "jurisdiction": "Federal question",
        "status": "terminated",
        "dateFiled": "2013-02-08",
        "dateTerminated": "2017-12-15",
        "parties": [
          "Intellectual Ventures II LLC",
          "AT&T Corp.",
          "AT&T Inc."
        ],
        "patentNumbers": [
          "6424636",
          "6246695",
          "5790548",
          "7817532"
        ],
        "entryTotal": 289,
        "entries": [
          {
            "documentNumber": "1",
            "dateFiled": "Feb 8, 2013",
            "description": "COMPLAINT ( Filing fee $ 350 receipt number 0542-5257884), filed by Intellectual Ventures.",
            "documentHref": "/docket/4400908/1/intellectual-ventures-ii-llc-v-att-corp/",
            "pdfUrl": "https://storage.courtlistener.com/recap/gov.uscourts.txwd.605756.1.0.pdf",
            "patentNumbers": [
              "6424636",
              "6246695",
              "5790548"
            ]
          },
          {
            "documentNumber": "20",
            "dateFiled": "Apr 29, 2013",
            "description": "ANSWER to 1 Complaint, with Jury Demand, COUNTERCLAIM against Intellectual Ventures II LLC.",
            "documentHref": null,
            "pdfUrl": "",
            "patentNumbers": []
          }
        ]
      }
    ]
  }
}

​
Credit Consumption

  • Average response time: 3s
  • Credit consumption: 5 Credit/Per Request