Patents

Overview

A patent family is a US root application together with its continuations, divisionals and provisionals. Each family carries its members and their status, recorded owners (and the Pav companies they are linked to), recorded assignments, prosecution and maintenance events, CPC classes, and a statutory term end date. Questions this dataset answers:

Which live, granted US patent families does a company own?
Which families mention a drug, and who owns them?
When does a family’s statutory term end?
Has ownership of a family changed hands?

Coverage

Families	Live families	Source	Company links
122,000+ (September 2026)	108,000+	USPTO applications, grants and assignment records	About a quarter of families are linked to a Pav company

No rows for a company does not mean the company holds no patents. An owner name that is not linked to a Pav company is still listed in owner_names; search it with q.

Key fields

Field	Description
`family_id`	Pav family id.
`representative_title`	Title of the representative member.
`member_count`, `granted_count`, `pending_count`	Family size and status mix.
`earliest_priority_date`, `earliest_filing_date`, `latest_grant_date`, `latest_status_date`	Key dates.
`has_live_member`	`true` when any member is pending or in force.
`owner_names[]`	Recorded owners of live members, as recorded.
`companies[]`	Owners linked to Pav companies.
`members[]`	Member applications (list endpoint: with `include_members=true`, up to 30 per family).

GET /v1/patents/{family_id} adds statutory_term_start and statutory_term_end, family cpc_codes, per-member owners, recorded conveyances in ownership[], and prosecution and maintenance events[].

statutory_term_end is the earliest nonprovisional filing date plus 20 years. It does not include patent term adjustments or extensions. Treat it as a baseline for loss-of-exclusivity work, not a final expiry date.

Endpoints

Endpoint	Use
`GET /v1/patents`	Search and filter families.
`GET /v1/patents/{family_id}`	One family with members, ownership, events and term.

Filters

All filters are optional and combine with AND.

Parameter	Matches	Example
`q`	Substring of the title, an owner name, or a member’s patent number. No synonym expansion.	`tirzepatide`
`company_id`	Families whose live members a Pav company owns. Repeatable.	`218`
`cpc`	CPC class prefix on any member.	`C07K`
`state`	`live` (a member pending or in force) or `lapsed` (none).	`live`
`granted`	`true`: at least one grant; `false`: none.	`true`
`priority_from`, `priority_to`	Earliest priority date range, inclusive.	`2020-01-01`
`include_members`	Include member applications.	`true`
`sort`	`latest_status_date` (default), `earliest_priority_date`, `member_count`; newest or largest first.	`earliest_priority_date`
`include_total`	Exact match count.	`true`
`limit`, `offset`	Page size (1–100, default 25) and offset (up to 10,000).	`limit=50`

A lapsed family has no live owners, so company_id with state=lapsed returns nothing.

A company’s live granted families

curl -G https://api.pav.bio/v1/patents \
  -H "Authorization: Bearer $PAV_API_KEY" \
  --data-urlencode "company_id=218" \
  --data-urlencode "state=live" \
  --data-urlencode "granted=true" \
  --data-urlencode "include_total=true" \
  --data-urlencode "limit=3"

import os
import requests

resp = requests.get(
    "https://api.pav.bio/v1/patents",
    headers={"Authorization": f"Bearer {os.environ['PAV_API_KEY']}"},
    params={"company_id": 218, "state": "live", "granted": "true", "include_total": "true", "limit": 3},
)
resp.raise_for_status()
body = resp.json()
print("total:", body["pagination"]["total"])
for f in body["data"]:
    print(f["family_id"], "|", f["representative_title"], "|", f.get("earliest_priority_date"))

const params = new URLSearchParams({
  company_id: "218",
  state: "live",
  granted: "true",
  include_total: "true",
  limit: "3",
});
const resp = await fetch(`https://api.pav.bio/v1/patents?${params}`, {
  headers: { Authorization: `Bearer ${process.env.PAV_API_KEY}` },
});
const body = await resp.json();
console.log("total:", body.pagination.total);
for (const f of body.data) console.log(f.family_id, "|", f.representative_title, "|", f.earliest_priority_date);

Example response (trimmed)

{
  "data": [
    {
      "family_id": "63477734",
      "representative_title": "PROCESSES AND INTERMEDIATES FOR PREPARING TIRZEPATIDE",
      "member_count": 3,
      "granted_count": 1,
      "earliest_priority_date": "2022-12-29",
      "has_live_member": true,
      "companies": [{ "company_id": 218, "short_name": "eli_lilly", "name": "Eli Lilly" }]
    },
    {
      "family_id": "62946586",
      "representative_title": "KRAS G12C INHIBITORS",
      "member_count": 2,
      "granted_count": 1,
      "earliest_priority_date": "2019-12-11",
      "has_live_member": true,
      "companies": [{ "company_id": 218, "short_name": "eli_lilly", "name": "Eli Lilly" }]
    }
  ],
  "pagination": { "limit": 3, "offset": 0, "total": 81 }
}

Families that mention a drug

q matches titles and owner names, so it finds families from every owner, including owners that are not Pav companies.

curl -G https://api.pav.bio/v1/patents \
  -H "Authorization: Bearer $PAV_API_KEY" \
  --data-urlencode "q=tirzepatide" \
  --data-urlencode "include_total=true" \
  --data-urlencode "limit=5"

import os
import requests

resp = requests.get(
    "https://api.pav.bio/v1/patents",
    headers={"Authorization": f"Bearer {os.environ['PAV_API_KEY']}"},
    params={"q": "tirzepatide", "include_total": "true", "limit": 5},
)
resp.raise_for_status()
for f in resp.json()["data"]:
    print(f["family_id"], "|", f["representative_title"], "|", ", ".join(f.get("owner_names", [])))

const params = new URLSearchParams({ q: "tirzepatide", include_total: "true", limit: "5" });
const resp = await fetch(`https://api.pav.bio/v1/patents?${params}`, {
  headers: { Authorization: `Bearer ${process.env.PAV_API_KEY}` },
});
const { data } = await resp.json();
for (const f of data) console.log(f.family_id, "|", f.representative_title, "|", (f.owner_names ?? []).join(", "));

Example response (trimmed)

{
  "data": [
    { "family_id": "63477734", "representative_title": "PROCESSES AND INTERMEDIATES FOR PREPARING TIRZEPATIDE", "owner_names": ["ELI LILLY AND COMPANY"] },
    { "family_id": "19062335", "representative_title": "MULTI-DOSE PEN OF TIRZEPATIDE", "owner_names": ["ORBICULAR PHARMACEUTICAL TECHNOLOGIES PRIVATE LIMITED"] },
    { "family_id": "63589289", "representative_title": "INTRANASAL DELIVERY OF TIRZEPATIDE TO TREAT OBESITY", "owner_names": ["THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK"] }
  ],
  "pagination": { "limit": 5, "offset": 0, "total": 7 }
}

Get one family

curl https://api.pav.bio/v1/patents/63477734 \
  -H "Authorization: Bearer $PAV_API_KEY"

Example response (trimmed)

{
  "family_id": "63477734",
  "representative_title": "PROCESSES AND INTERMEDIATES FOR PREPARING TIRZEPATIDE",
  "member_count": 3,
  "granted_count": 1,
  "pending_count": 2,
  "earliest_priority_date": "2022-12-29",
  "latest_grant_date": "2025-05-20",
  "owner_names": ["ELI LILLY AND COMPANY"],
  "companies": [{ "company_id": 218, "short_name": "eli_lilly", "name": "Eli Lilly" }],
  "statutory_term_start": "2023-12-29",
  "statutory_term_end": "2043-12-29",
  "cpc_codes": ["C07K   1/061", "C07K  14/605"],
  "members": [
    {
      "application_number": "18806394",
      "patent_number": "12304938",
      "role": "continuation",
      "filing_date": "2024-08-15",
      "grant_date": "2025-05-20",
      "status_description": "Patented Case",
      "is_dead": false
    }
  ],
  "ownership": [
    {
      "recorded_date": "2025-10-29",
      "conveyance_kind": "assignment",
      "conveyance_text": "ASSIGNMENT OF ASSIGNOR'S INTEREST",
      "assignees": ["ELI LILLY AND COMPANY"],
      "application_numbers": ["19351688"]
    }
  ],
  "events": [
    { "event_date": "2026-09-24", "application_number": "19351688", "event_code": "WIDS", "description": "Information Disclosure Statement (IDS) Filed" }
  ],
  "events_total": 139
}

Patent and LOE check guide
Companies: resolve an owner to company_id.

Get started

Datasets

Working with the API

Integrations

Guides

Overview

Coverage

Key fields

Endpoints

Filters

A company’s live granted families

Families that mention a drug

Get one family

​Overview

​Coverage

​Key fields

​Endpoints

​Filters

​A company’s live granted families

​Families that mention a drug

​Get one family

​Related

Overview

Coverage

Key fields

Endpoints

Filters

A company’s live granted families

Families that mention a drug

Get one family

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