pangolinfo-ip

Pangolinfo IP Compliance API — WIPO design patent search and PACER US patent litigation lookup.

Built and maintained by PANGOLIN INFO TECH PTE. LTD.

Installation

pip install pangolinfo-ip

Quick start

from pangolinfo_ip import IPClient

client = IPClient(token="your_bearer_token")

# WIPO design patent search
result = client.wipo_search(irn="DM123456", ds="US", source="USID")
print(result["total"], len(result["hits"]))

# PACER US patent litigation lookup
result = client.pacer_search(patent_number="D1234567")
print(result["total"], len(result["hits"]))

Authentication

All requests require a Bearer token. Get a free API key at tool.pangolinfo.com.

client = IPClient(token="your_bearer_token")

Methods

client.wipo_search(irn, ds, source, **kwargs)

Search the WIPO design patent database.

Required parameters:

Parameter	Type	Description
irn	str	International registration number
ds	str	Specify country
source	str	Data source — USID / CNID / JPID / EMID / HAGUE etc.

Optional keyword arguments:

Parameter	Type	Description
ed	str	Expiration date
from_	int	Page start position
hol	str	Right holder
id	str	Unique identifier
id_search	str	ID variant (sent as idSearch)
lcs	str	Design classification (Locarno, e.g. "30-01")
prod	str	Product description keyword
rd	str	Registration date
num	int	Items per page
status	str	Legal status — ACT / PEND / DEL
enable_litigation	bool	Smart Risk Control Mode. When True, chains WIPO results to PACER US litigation lookup. Default False.

Response (returned directly, unwrapped):

{
  "total": 42,
  "hits": [
    {
      "ID": "...",
      "IRN": "...",
      "SOURCE": "USID",
      "STATUS": "ACT",
      "RD": "...",
      "HOL": "...",
      "PROD": "...",
      "LCS": "30-01",
      "DS": "US",
      "DC": "...",
      "DOC": "...",
      "IMG": "...",
      "IMG_DATA": "...",
      "DETAIL_URL": "...",
      "DETAIL_DATA": {}
    }
  ]
}

When enable_litigation=True, each hit additionally contains litigationStatus, caseTotal, and cases[].

Example — with litigation risk control:

result = client.wipo_search(
    irn="DM123456",
    ds="US",
    source="USID",
    enable_litigation=True,
)
for hit in result["hits"]:
    print(hit["IRN"], hit.get("litigationStatus"), hit.get("caseTotal"))

client.pacer_search(...)

Search PACER US patent litigation records.

At least one of patent_number, company_name, or case_number is required.

Parameters:

Parameter	Type	Required	Description
patent_number	str	one of three	Patent number (exact match)
company_name	str	one of three	Plaintiff/Defendant company name (prefix match)
case_number	str	one of three	Court case number, e.g. "3:90-cv-00003"
from_	int	optional	Case pagination offset (default 0)
size	int	optional	Cases per page (default 10)
entry_size	int	optional	Timeline records per case (default 50)

Response (data field is returned):

{
  "total": 3,
  "hits": [
    {
      "docketId": "...",
      "docketNumber": "3:90-cv-00003",
      "caseId": "...",
      "caseName": "Acme v. Beta",
      "court": "N.D. Cal.",
      "courtId": "...",
      "assignedTo": "...",
      "suitNature": "...",
      "jurisdiction": "...",
      "status": "...",
      "dateFiled": "...",
      "dateTerminated": "...",
      "parties": [],
      "patentNumbers": ["D1234567"],
      "entryTotal": 12,
      "entries": []
    }
  ]
}

Example:

# By patent number
result = client.pacer_search(patent_number="D1234567")

# By company name with pagination
result = client.pacer_search(
    company_name="Acme",
    from_=0,
    size=20,
    entry_size=100,
)

# By case number
result = client.pacer_search(case_number="3:90-cv-00003")

Parameter name conversion

Python snake_case parameters are converted to the API's expected names automatically:

Python	API
patent_number	patentNumber
company_name	companyName
case_number	caseNumber
from_	from
entry_size	entrySize
enable_litigation	enable_litigation (unchanged)

Error handling

from pangolinfo_ip import IPClient
from pangolinfo_ip.exceptions import AuthenticationError, APIError, TimeoutError

try:
    with IPClient(token="...") as client:
        result = client.wipo_search(irn="DM123456", ds="US", source="USID")
except AuthenticationError:
    print("Invalid token")
except APIError as e:
    print(f"API error (code={e.code}): {e}")
except TimeoutError:
    print("Request timed out")

Context manager

IPClient supports the context manager protocol, ensuring the underlying HTTP connection is closed:

with IPClient(token="...") as client:
    result = client.pacer_search(patent_number="D1234567")

Links

• Documentation: docs.pangolinfo.com
• Get a free API key: tool.pangolinfo.com
• Source code: github.com/Pangolin-spg/pangolinfo-ip

License

MIT — © PANGOLIN INFO TECH PTE. LTD.